Issue using WebdriverIO to test Tauri app - rust

I am using the https://github.com/chippers/hello_tauri example application from the Tauri documentation.
The app builds and runs correctly.
Had to change the port in wdio.conf.js to 4445 but nothing else was modified.
When running the webdriverio tests I get a blank Edge window opening with data:, in the address bar.
Using Windows 11, EdgeDriver version: 110.0.1587.46, Tauri-Driver version: 0.1.2
Error message, makes sense as the window is blank:
[0-0] 2023-02-16T11:11:53.245Z INFO webdriver: COMMAND findElement("css selector", "body > h1")
[0-0] 2023-02-16T11:11:53.245Z INFO webdriver: [POST] http://127.0.0.1:4445/session/661c211404b1904cb56f6d928fde54a1/element
[0-0] 2023-02-16T11:11:53.245Z INFO webdriver: DATA { using: 'css selector', value: 'body > h1' }
[0-0] 2023-02-16T11:11:53.261Z INFO webdriver: RESULT {
[0-0] error: 'no such element',
[0-0] message: 'no such element: Unable to locate element: {"method":"css selector","selector":"body > h1"}\n' +
[0-0] ' (Session info: MicrosoftEdge=110.0.1587.46)',
[0-0] stacktrace: 'Backtrace:\n' +
[0-0] '\tMicrosoft::Applications::Events::EventProperties::SetProperty [0x00007FF745074902+14722]\n' +
[0-0] '\tMicrosoft::Applications::Events::EventProperty::EventProperty [0x00007FF74500B992+817442]\n' +
[0-0] '\t(No symbol) [0x00007FF744C9DB50]\n' +
[0-0] '\t(No symbol) [0x00007FF744CE0585]\n' +
[0-0] '\t(No symbol) [0x00007FF744CE070C]\n' +
[0-0] '\t(No symbol) [0x00007FF744D1C277]\n' +
[0-0] '\t(No symbol) [0x00007FF744D006CF]\n' +
[0-0] '\t(No symbol) [0x00007FF744CD3121]\n' +
[0-0] '\t(No symbol) [0x00007FF744D196FE]\n' +
[0-0] '\t(No symbol) [0x00007FF744D00343]\n' +
[0-0] '\t(No symbol) [0x00007FF744CD1FFC]\n' +
[0-0] '\t(No symbol) [0x00007FF744CD0F7E]\n' +
[0-0] '\t(No symbol) [0x00007FF744CD27EE]\n' +
[0-0] '\tMicrosoft::Applications::Events::EventProperties::SetProperty [0x00007FF744EEF580+181072]\n' +
[0-0] '\t(No symbol) [0x00007FF744DA07F7]\n' +
[0-0] '\tMicrosoft::Applications::Events::EventProperty::EventProperty [0x00007FF744F50252+49634]\n' +
[0-0] '\tMicrosoft::Applications::Events::EventProperty::EventProperty [0x00007FF744F53455+62437]\n' +
[0-0] '\tMicrosoft::Applications::Events::ILogManager::DispatchEventBroadcast [0x00007FF745262038+1407928]\n' +
[0-0] '\tMicrosoft::Applications::Events::EventProperty::EventProperty [0x00007FF745013E9F+851503]\n' +
[0-0] '\tMicrosoft::Applications::Events::EventProperty::EventProperty [0x00007FF745018F04+872084]\n' +
[0-0] '\tMicrosoft::Applications::Events::EventProperty::EventProperty [0x00007FF74501905C+872428]\n' +
[0-0] '\tMicrosoft::Applications::Events::EventProperty::EventProperty [0x00007FF74502136B+905979]\n' +
[0-0] '\tBaseThreadInitThunk [0x00007FFE8E3026BD+29]\n' +
[0-0] '\tRtlUserThreadStart [0x00007FFE8ED6DFB8+40]\n'
[0-0] }
Am I doing something wrong, were there breaking changes in newer version of the Edge/Tauri webdrivers? Any help is greatly appreciated.


To fix the issue set hostname to 127.0.0.1 and add .exe to the binary path.

Related

Google Cloud Run is returning error 503 - Service Unavailable

For some reason that I have not been able to spot, cloud run always returns 503 - Unavailable. No matter what I do. This works locally so I have no idea what could be the problem. All the other endpoints of the app work. Everything operates normally, but this request, for some reason, only works on localhost but when deployed to GCR, it doesn't works.
What I'm trying to do is upload a file to google drive. Here is the logic of the request:
router.post("/upload", async(req, res)=>{
const payload = req.body;
const resource = {
name: payload.fileName || "Picture",
driveId: process.env.DRIVE_ID
};
const uploadedFile = await uploadToTeamDrive(payload.imgData, resource).catch(error=>{
console.error(`Error uploading file to team drive: ${error.toString()}`);
gapiError(res, error);
});
if(!uploadedFile){ return; }
res.status(201).send({success: true});
});
const uploadToTeamDrive = async(base64Img, resource)=>{
const base64String = base64Img.split(",")[1];
const imgData = Readable.from(Buffer.from(base64String, "base64"));
const mimeType = base64Img.split(",")[0].split(";")[0].split(":")[1];
const scopes = ["https://www.googleapis.com/auth/drive"];
const client = await getClient(scopes);
const service = google.drive({version: "v3", auth: client});
const request = await service.files.create({
media: {
body: imgData,
mimeType: mimeType
},
requestBody: resource,
fields: "id,webViewLink,name,thumbnailLink,iconLink",
supportsAllDrives: true
});
const file = request.data;
return file;
}
This is what the logs from cloud run say:
Default
2021-02-05 13:01:20.945 CSTevents.js:187
Default
2021-02-05 13:01:20.945 CST throw er; // Unhandled 'error' event
Default
2021-02-05 13:01:20.945 CST ^
Default
2021-02-05 13:01:20.945 CST
Default
2021-02-05 13:01:20.945 CSTTypeError [ERR_INVALID_ARG_TYPE]: The "chunk" argument must be one of type string or Buffer. Received type number
Default
2021-02-05 13:01:20.945 CST at validChunk (_stream_writable.js:268:10)
Default
2021-02-05 13:01:20.945 CST at ProgressStream.Writable.write (_stream_writable.js:303:21)
Default
2021-02-05 13:01:20.945 CST at Readable.ondata (_stream_readable.js:727:22)
Default
2021-02-05 13:01:20.945 CST at Readable.emit (events.js:210:5)
Default
2021-02-05 13:01:20.945 CST at addChunk (_stream_readable.js:309:12)
Default
2021-02-05 13:01:20.945 CST at readableAddChunk (_stream_readable.js:290:11)
Default
2021-02-05 13:01:20.945 CST at Readable.push (_stream_readable.js:224:10)
Default
2021-02-05 13:01:20.945 CST at next (internal/streams/from.js:34:27)
Default
2021-02-05 13:01:20.945 CST at processTicksAndRejections (internal/process/task_queues.js:93:5)
Default
2021-02-05 13:01:20.945 CSTEmitted 'error' event on Readable instance at:
Default
2021-02-05 13:01:20.945 CST at emitErrorNT (internal/streams/destroy.js:92:8)
Default
2021-02-05 13:01:20.945 CST at emitErrorAndCloseNT (internal/streams/destroy.js:60:3)
Default
2021-02-05 13:01:20.945 CST at processTicksAndRejections (internal/process/task_queues.js:80:21) {
2021-02-05 13:01:20.945 CST code: 'ERR_INVALID_ARG_TYPE'
Default
2021-02-05 13:01:20.945 CST}
2021-02-05 13:01:20.959 CSTPOST503661 B53 msChrome 88 https://xxx-yyy-test-75i2ghnk3q-uc.a.run.app/images/upload
The request failed because either the HTTP response was malformed or connection to the instance had an error.
Default
2021-02-05 13:01:20.961 CSTnpm ERR! code ELIFECYCLE
Default
2021-02-05 13:01:20.961 CSTnpm ERR! errno 1
Default
2021-02-05 13:01:20.962 CSTnpm ERR! xxx-yyy#0.0.0 startapp: `node server/server.js`
Default
2021-02-05 13:01:20.962 CSTnpm ERR! Exit status 1
Default
2021-02-05 13:01:20.962 CSTnpm ERR!
Default
2021-02-05 13:01:20.963 CSTnpm ERR! Failed at the xxx-yyy#0.0.0 startapp script.
Default
2021-02-05 13:01:20.963 CSTnpm ERR! This is probably not a problem with npm. There is likely additional logging output above.
Default
2021-02-05 13:01:22.078 CST
Default
2021-02-05 13:01:22.078 CST> xxx-yyy#0.0.0 startapp /usr/src/app
Default
2021-02-05 13:01:22.078 CST> node server/server.js
Default
2021-02-05 13:01:22.078 CST
Default
2021-02-05 13:01:23.240 CSTListening on port: 8080
I have followed all the suggestions in the troubleshooting documentation but nothing seems to give me a hint. There is nothing more on the logs and I already reviewed the GCR limitations and can't seem to find any problem.

Thanks to the suggestion by #guillaumeblaquiere I was able to troubleshoot the container locally. I realized that for some reason, the line that was causing the issue was this one:
const imgData = Readable.from(Buffer.from(base64String, "base64"));
That line of code works on windows, which is my development environment, but it doesn't work on linux, the container environment. Thanks to this post I change that line of code to:
const theBuff = Buffer.from(base64String, "base64");
const imgData = new PassThrough();
imgData.end(theBuff);
The above seems to play nice with linux and now the error is gone. In conclusion, this was not a google cloud run problem, but an environment code issue. I still have to investigate why the error. If someone knows, please provide some enlightenment.

mysql2 connection.connect() hangs in typescript jest test on macOS

I am trying to create a mysql2 connection to a local mysql-Database in a jest-Test on macOS using typescript. And the call to connect() hangs.
Environment:
MacOS: High Sierra (10.13.6)
MySQL: 8.0.18
Typescript: 3.7.2
mysql2: 2.0.1
nodejs: v10.16.3
I am using the promise-Wrapper. The code looks like this:
import { createConnection, ConnectionOptions, Connection } from 'mysql2/promise'
...
async openConnection(options: ConnectionOptions): Promise<Connection> {
console.log('About to create mysql connection using options ', options);
const connection = await createConnection(options);
console.log('Connection created => about to call connect()');
await connection.connect();
console.log('Connection created => connect() returned'); // this line is never reached!
....
return connection;
}
I already added the debug-Option and this is the output:
Dieters-MBP-6:db-typescript rehdie$ node_modules/.bin/jest src/tests/mysql/mysql-connection.spec.ts --testNamePattern="Should open connection"
console.log src/lib/mysql/driver/mysql-driver.ts:21
About to create mysql connection using options { user: 'mysql-test',
password: '1q2w3e4r',
host: 'localhost',
port: 3306,
database: 'mysql_test_db',
charset: 'latin1_swedish_ci',
connectTimeout: 5000,
debug: true }
console.log node_modules/mysql2/lib/connection.js:425
Add command: ClientHandshake
console.log node_modules/mysql2/lib/connection.js:381
raw: 0a382e302e31380018000000277919626469296e00ffffff0200ffc715000000000000000000006d6335316a3c3d454220053a0063616368696e675f736861325f70617373776f726400
console.error console.js:274
Trace:
at Connection.handlePacket (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:387:17)
at PacketParser.Connection.packetParser.p [as onPacket] (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:70:12)
at PacketParser.executeStart (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/packet_parser.js:75:16)
at Socket.Connection.stream.on.data (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:77:25)
at Socket.emit (events.js:198:13)
at addChunk (_stream_readable.js:288:12)
at readableAddChunk (_stream_readable.js:269:11)
at Socket.Readable.push (_stream_readable.js:224:10)
at TCP.onStreamRead [as onread] (internal/stream_base_commons.js:94:17)
console.log node_modules/mysql2/lib/connection.js:395
0 undefined ==> ClientHandshake#unknown name(0,,78)
console.log node_modules/mysql2/lib/commands/client_handshake.js:96
Server hello packet: capability flags:3355443199=(long password, found rows, long flag, connect with db, no schema, compress, odbc, local files, ignore space, protocol 41, interactive, ssl, ignore sigpipe, transactions, reserved, secure connection, multi statements, multi results, ps multi results, plugin auth, connect attrs, plugin auth lenenc client data, can handle expired passwords, session track, deprecate eof, ssl verify server cert, remember options)
console.log node_modules/mysql2/lib/commands/client_handshake.js:41
Sending handshake packet: flags:11203535=(long password, found rows, long flag, connect with db, odbc, local files, ignore space, protocol 41, ignore sigpipe, transactions, reserved, secure connection, multi results, plugin auth, plugin auth lenenc client data, session track)
console.log node_modules/mysql2/lib/connection.js:253
0 24 <== ClientHandshake#unknown name(1,,104)
console.log node_modules/mysql2/lib/connection.js:257
0 24 <== 64000001cff3aa00000000000800000000000000000000000000000000000000000000006d7973716c2d746573740014a13dd11599725225bcae39464cc3700a5fa085fc6d7973716c5f746573745f6462006d7973716c5f6e61746976655f70617373776f726400
console.log node_modules/mysql2/lib/connection.js:381
raw: fe63616368696e675f736861325f70617373776f726400277919626469296e6d6335316a3c3d454220053a00
console.error console.js:274
Trace:
at Connection.handlePacket (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:387:17)
at PacketParser.Connection.packetParser.p [as onPacket] (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:70:12)
at PacketParser.executeStart (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/packet_parser.js:75:16)
at Socket.Connection.stream.on.data (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:77:25)
at Socket.emit (events.js:198:13)
at addChunk (_stream_readable.js:288:12)
at readableAddChunk (_stream_readable.js:269:11)
at Socket.Readable.push (_stream_readable.js:224:10)
at TCP.onStreamRead [as onread] (internal/stream_base_commons.js:94:17)
console.log node_modules/mysql2/lib/connection.js:395
0 24 ==> ClientHandshake#unknown name(2,,48)
console.log node_modules/mysql2/lib/connection.js:253
0 24 <== ClientHandshake#unknown name(3,,36)
console.log node_modules/mysql2/lib/connection.js:257
0 24 <== 20000003374930d53dd94bc2dbe6b54e4b83cd628658a1984656eb6ee4f31d7df596ce36
console.log node_modules/mysql2/lib/connection.js:381
raw: 0103
console.error console.js:274
Trace:
at Connection.handlePacket (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:387:17)
at PacketParser.Connection.packetParser.p [as onPacket] (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:70:12)
at PacketParser.executeStart (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/packet_parser.js:75:16)
at Socket.Connection.stream.on.data (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:77:25)
at Socket.emit (events.js:198:13)
at addChunk (_stream_readable.js:288:12)
at readableAddChunk (_stream_readable.js:269:11)
at Socket.Readable.push (_stream_readable.js:224:10)
at TCP.onStreamRead [as onread] (internal/stream_base_commons.js:94:17)
console.log node_modules/mysql2/lib/connection.js:395
0 24 ==> ClientHandshake#unknown name(4,,6)
console.log node_modules/mysql2/lib/connection.js:381
raw: 000000024000000010010e0d6d7973716c5f746573745f6462
console.error console.js:274
Trace:
at Connection.handlePacket (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:387:17)
at PacketParser.Connection.packetParser.p [as onPacket] (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:70:12)
at PacketParser.executeStart (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/packet_parser.js:75:16)
at Socket.Connection.stream.on.data (/Users/rehdie/development/projects/db-typescript/node_modules/mysql2/lib/connection.js:77:25)
at Socket.emit (events.js:198:13)
at addChunk (_stream_readable.js:288:12)
at readableAddChunk (_stream_readable.js:269:11)
at Socket.Readable.push (_stream_readable.js:224:10)
at TCP.onStreamRead [as onread] (internal/stream_base_commons.js:94:17)
console.log node_modules/mysql2/lib/connection.js:395
0 24 ==> ClientHandshake#unknown name(5,maybeOK,29)
console.log src/lib/mysql/driver/mysql-driver.ts:24
Connection created => about to call connect()
RUNS src/tests/mysql/mysql-connection.spec.ts
When I perform a show process list in mysql, I see a new process with Command 'Sleep' (state is empty and info is null).
Any ideas?

You need to ensure that node is using the system time and not fake timers. Add the below line immediately after your imports in the test file
jest.useRealTimers();
Or better still you can set timers to real in your jest config
"timers":"real"

Npm test cannot find socket.io.js file

I am trying to make tests using Karma and i am following Angulars own testing guide. Currently i am using the most basic test class but having issues running it.
The test class:
describe('1st test',()=>{
it('true is true', ()=> expect(true).toBe(true)); });
When i run it using npm test i get the following error in the command prompt:
[1] 24 04 2017 11:27:24.957:WARN [web-server]: 404: /base/node_modules/socket.io-client/dist/socket.io.js
[1] Chrome 57.0.2987 (Windows 10 0.0.0) ERROR
[1] {
[1] "__zone_symbol__error": {
[1] "originalStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "zoneAwareStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js"
[1] },
[1] "stack": "(SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "name": "Error",
[1] "message": "(SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "originalStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "zoneAwareStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "__zone_symbol__stack": "(SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "originalErr": {
[1] "__zone_symbol__error": {
[1] "originalStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "zoneAwareStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js"
[1] },
[1] "stack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "name": "Error",
[1] "message": "XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "originalStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "zoneAwareStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "__zone_symbol__currentTask": {
[1] "type": "microTask",
[1] "state": "notScheduled",
[1] "source": "Promise.then",
[1] "zone": "<root>",
[1] "cancelFn": null,
[1] "runCount": 0
[1] },
[1] "__zone_symbol__stack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "__zone_symbol__message": "XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "__zone_symbol__name": "Error",
[1] "__zone_symbol__originalStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "__zone_symbol__zoneAwareStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js"
[1] },
[1] "__zone_symbol__currentTask": {
[1] "type": "microTask",
[1] "state": "notScheduled",
[1] "source": "Promise.then",
[1] "zone": "<root>",
[1] "cancelFn": null,
[1] "runCount": 0
[1] },
[1] "__zone_symbol__name": "Error",
[1] "__zone_symbol__message": "(SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "__zone_symbol__originalStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "__zone_symbol__zoneAwareStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js"
[1] }
[1]
[1] Chrome 57.0.2987 (Windows 10 0.0.0) ERROR
[1] {
[1] "__zone_symbol__error": {
[1] "originalStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "zoneAwareStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js"
[1] },
[1] "stack": "(SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "name": "Error",
[1] "message": "(SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "originalStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "zoneAwareStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "__zone_symbol__stack": "(SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "originalErr": {
[1] "__zone_symbol__error": {
[1] "originalStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "zoneAwareStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js"
[1] },
[1] "stack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "name": "Error",
[1] "message": "XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "originalStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "zoneAwareStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "__zone_symbol__currentTask": {
[1] "type": "microTask",
[1] "state": "notScheduled",
[1] "source": "Promise.then",
[1] "zone": "<root>",
[1] "cancelFn": null,
[1] "runCount": 0
[1] },
[1] "__zone_symbol__stack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "__zone_symbol__message": "XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "__zone_symbol__name": "Error",
[1] "__zone_symbol__originalStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js",
[1] "__zone_symbol__zoneAwareStack": "Error: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js"
[1] },
[1] "__zone_symbol__currentTask": {
[1] "type": "microTask",
[1] "state": "notScheduled",
[1] "source": "Promise.then",
[1] "zone": "<root>",
[1] "cancelFn": null,
[1] "runCount": 0
[1] },
[1] "__zone_symbol__name": "Error",
[1] "__zone_symbol__message": "(SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "__zone_symbol__originalStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js",
[1] "__zone_symbol__zoneAwareStack": "Error: (SystemJS) XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError: XHR error (404 Not Found) loading src/node_modules/socket.io-client/dist/socket.io.js\n\tError loading src/node_modules/socket.io-client/dist/socket.io.js as \"socket.io-client\" from src/app/global/socket.service.js"
[1] }
I have checked the file that it cannot find and it exists in the directory stated by the error so i have no clue what to do.

Those are 404 errors for XHR requests. It doesn't mean that the file does not exist in the file system but that it is not served by accessing that particular path. It is unlikely that your server serves the entire file system so you shouldn't be worried if the file exists there or not but if it is being served from a particular URL that your program is trying to access it from.
See the code examples in this answer for an example:
Getting data from/writing data to localhost with Express
Here the socket.io.js file is referenced in HTML as:
<script src="/socket.io/socket.io.js"></script>
not as an absolute path in the file system, and not with a path including node_modules. Paths in the HTTP requests and paths in the file system are a different thing and 404 errors are HTTP-specific.

SELF_SIGNED_CERT_IN_CHAIN: Heroku nodeJS with paypal integration

I have have an application running on heroku built with NodeJS
Application has Paypal integration with Paypal REST SDK
For some reason sometimes after calling the paypal sdk methods I getting error with "SELF_SIGNED_CERT_IN_CHAIN" message.
Also seems that this error is gone after the application is restarted.
The calling method is straight forward, which works without any issues 90% of time
// Bluebird promisified paypal.create function
// Payment object is usual paypal object descibed in Paypal NodeJS SDK samlpes
// https://github.com/paypal/PayPal-node-SDK/blob/master/samples/payment/create_with_paypal.js
paypal.payment.create(paymentObj)
.then(function(result) {
// handle result and redirect user to paypal confirm page
})
// Handle errors
.catch(function(err) {
log.error(err.stack);
res.status(500).json({
message: err.message
});
});
Here is the error stack
method=GET path="/api/v1/orders/create/1/multiple" request_id=ef4d2b98-7060-4049-9c72-13d58bd14184 status=500 bytes=246
Jun 04 04:39:17 app/web.2: problem with request: SELF_SIGNED_CERT_IN_CHAIN
Jun 04 04:39:17 app/web.2: {
Jun 04 04:39:17 app/web.2: "level": "error",
Jun 04 04:39:17 app/web.2: "message": " Error: SELF_SIGNED_CERT_IN_CHAIN\n at SecurePair.<anonymous> (tls.js:1381:32)\n at SecurePair.emit (events.js:92:17)\n at SecurePair.maybeInitFinished (tls.js:980:10)\n at CleartextStream.read [as _read] (tls.js:472:13)\n at CleartextStream.Readable.read (_stream_readable.js:341:10)\n at EncryptedStream.write [as _write] (tls.js:369:25)\n at doWrite (_stream_writable.js:226:10)\n at writeOrBuffer (_stream_writable.js:216:5)\n at EncryptedStream.Writable.write (_stream_writable.js:183:11)\n at write (_stream_readable.js:602:24)\n at flow (_stream_readable.js:611:7)\n at Socket.pipeOnReadable (_stream_readable.js:643:5)\n at Socket.emit (events.js:92:17)\n at emitReadable_ (_stream_readable.js:427:10)\n at emitReadable (_stream_readable.js:423:5)\n at readableAddChunk (_stream_readable.js:166:9)"
Jun 04 04:39:17 app/web.2: }
The SSL certificate is purchased through DNSimple and set up according this article
https://devcenter.heroku.com/articles/ssl-certificate-dnsimple
Any help or advice would be really appreciated.
Thanks
Gevorg

Selenium Webdriver requires restarts to function consistently

My testing stack consists of the latest version of Selenium Server (2.33.0, aka selenium-server-standalone-2.33.0.jar), Mocha, Node.js, and PhantomJS.
My question regards the following code:
var webdriver = require('../../../lib/selenium/node_modules/selenium-webdriver/'),
driver = new webdriver.Builder().
withCapabilities({'browserName': 'phantomjs'}).
build();
driver.manage().timeouts().implicitlyWait(15000);
describe('Wordpress', function() {
it('should be able to log in', function(done) {
driver.get('http://#### REDACTED ####/wp-login.php');
driver.findElement(webdriver.By.css('#user_login')).sendKeys('#### REDACTED ####');
driver.findElement(webdriver.By.css('#user_pass')).sendKeys('#### REDACTED ####');
driver.findElement(webdriver.By.css('#wp-submit')).click();
// #wpwrap is an element on the Wordpress dashboard that is displayed once
// the user is logged in. By testing for its presence, we can determine
// if the login attempt succeeded.
driver.findElement(webdriver.By.css('#wpwrap')).then(function(v) {
done();
});
});
});
On my local system, OS X, the test runs fine consistently. However, once the test is uploaded to our CentOS server (where we hope to do Continuous Integration testing), the test behaves extremely strangely.
After Selenium Server is started, the test runs successfully once. From that point on, the test only succeeds every one out of ten times or so. Restarting Selenium Server guarantees that the test will run successfully. In fact, if Selenium Server is restarted every time the test is run, the test will succeed every time.
How can I get this test to succeed without restarting Selenium Server every time?
Thank you so much for your help! :)
UPDATE: In addition to the error log below, I'm also occasionally getting the following error:
Exception in thread "Thread-21" java.lang.OutOfMemoryError: unable to create new native thread
Details on the error messages follow below:
A successful test yields the following output from Mocha:
[s5rich#host ~]$ mocha test/selenium/acceptance/simple.js
Wordpress
✓ should be able to log in (2604ms)
1 passing (3 seconds)
A successful test also yields the following output from Selenium Server:
23:21:50.517 INFO - Executing: [new session: {browserName=phantomjs}] at URL: /session)
23:21:50.527 INFO - Creating a new session for Capabilities [{browserName=phantomjs}]
23:21:50.547 INFO - executable: /usr/local/bin/phantomjs
23:21:50.547 INFO - port: 26515
23:21:50.547 INFO - arguments: [--webdriver=26515, --webdriver-logfile=/home/s5rich/phantomjsdriver.log]
23:21:50.547 INFO - environment: {}
PhantomJS is launching GhostDriver...
[INFO - 2013-07-24T05:21:50.923Z] GhostDriver - Main - running on port 26515
[INFO - 2013-07-24T05:21:51.435Z] Session [f235d040-f420-11e2-8d90-f50327bc3449] - CONSTRUCTOR - Desired Capabilities: {"browserName":"phantomjs"}
[INFO - 2013-07-24T05:21:51.435Z] Session [f235d040-f420-11e2-8d90-f50327bc3449] - CONSTRUCTOR - Negotiated Capabilities: {"browserName":"phantomjs","version":"1.9.1","driverName":"ghostdriver","driverVersion":"1.0.3","platform":"linux-unknown-32bit","javascriptEnabled":true,"takesScreenshot":true,"handlesAlerts":false,"databaseEnabled":false,"locationContextEnabled":false,"applicationCacheEnabled":false,"browserConnectionEnabled":false,"cssSelectorsEnabled":true,"webStorageEnabled":false,"rotatable":false,"acceptSslCerts":false,"nativeEvents":true,"proxy":{"proxyType":"direct"}}
[INFO - 2013-07-24T05:21:51.435Z] SessionManagerReqHand - _postNewSessionCommand - New Session Created: f235d040-f420-11e2-8d90-f50327bc3449
23:21:51.495 INFO - Done: /session
23:21:51.504 INFO - Executing: org.openqa.selenium.remote.server.handler.GetSessionCapabilities#46b78d at URL: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2)
23:21:51.505 INFO - Done: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2
23:21:51.520 INFO - Executing: [get: http://#### REDACTED ####/wp-login.php] at URL: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/url)
23:21:51.821 INFO - Done: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/url
23:21:51.827 INFO - Executing: [find element: By.selector: #user_login] at URL: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element)
23:21:51.874 INFO - Done: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element
23:21:51.883 INFO - Executing: [send keys: 0 org.openqa.selenium.support.events.EventFiringWebDriver$EventFiringWebElement#20788bf8, [#### REDACTED ####]] at URL: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element/0/value)
23:21:51.939 INFO - Done: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element/0/value
23:21:51.948 INFO - Executing: [find element: By.selector: #user_pass] at URL: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element)
23:21:51.965 INFO - Done: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element
23:21:52.001 INFO - Executing: [send keys: 1 org.openqa.selenium.support.events.EventFiringWebDriver$EventFiringWebElement#20788bf9, [#### REDACTED ####]] at URL: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element/1/value)
23:21:52.065 INFO - Done: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element/1/value
23:21:52.074 INFO - Executing: [find element: By.selector: #wp-submit] at URL: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element)
23:21:52.099 INFO - Done: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element
23:21:52.106 INFO - Executing: [click: 2 org.openqa.selenium.support.events.EventFiringWebDriver$EventFiringWebElement#20788bfa] at URL: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element/2/click)
23:21:52.842 INFO - Done: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element/2/click
23:21:52.850 INFO - Executing: [find element: By.selector: #wpwrap] at URL: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element)
23:21:52.871 INFO - Done: /session/8750a6b4-ec7d-4313-a86d-04ac344b74f2/element
A failed test yields the following output from Mocha:
[s5rich#host ~]$ mocha test/selenium/acceptance/simple.js
Wordpress
1) should be able to log in
0 passing (2 seconds)
1 failing
1) Wordpress should be able to log in:
Uncaught UnknownError: Error Message => 'Unable to find element with css selector '#wpwrap''
caused by Request => {"headers":{"Accept":"application/json, image/png","Connection":"Keep-Alive","Content-Length":"42","Content-Type":"application/json; charset=utf-8","Host":"localhost:2897"},"httpVersion":"1.1","method":"POST","post":"{\"using\":\"css selector\",\"value\":\"#wpwrap\"}","url":"/element","urlParsed":{"anchor":"","query":"","file":"element","directory":"/","path":"/element","relative":"/element","port":"","host":"","password":"","user":"","userInfo":"","authority":"","protocol":"","source":"/element","queryKey":{},"chunks":["element"]},"urlOriginal":"/session/77a0a110-f421-11e2-a6fd-61cd002d7d02/element"}
Build info: version: '2.33.0', revision: '4e90c97', time: '2013-05-22 15:32:38'
System info: os.name: 'Linux', os.arch: 'i386', os.version: '2.6.32-042stab076.8', java.version: '1.7.0'
Driver info: driver.version: unknown
at new bot.Error (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/atoms/error.js:108:18)
at Object.bot.response.checkResponse (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/atoms/response.js:106:9)
at /home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/webdriver.js:262:20
at /home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/goog/base.js:1112:15
at webdriver.promise.ControlFlow.runInNewFrame_ (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:1431:20)
at notify (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:315:12)
at notifyAll (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:284:7)
at fulfill (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:389:7)
at /home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:1298:10
at /home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/goog/base.js:1112:15
at webdriver.promise.ControlFlow.runInNewFrame_ (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:1431:20)
at notify (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:315:12)
at notifyAll (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:284:7)
at fulfill (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:389:7)
at /home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/goog/base.js:1112:15
at webdriver.promise.ControlFlow.runInNewFrame_ (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:1431:20)
at notify (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:315:12)
at notifyAll (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:284:7)
at fulfill (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:389:7)
at /home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/promise.js:600:51
at /home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/http/http.js:96:5
at IncomingMessage.<anonymous> (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/http/index.js:113:7)
at IncomingMessage.EventEmitter.emit (events.js:117:20)
at _stream_readable.js:910:16
at process._tickCallback (node.js:415:13)
==== async task ====
WebDriver.findElement(By.cssSelector("#wpwrap"))
at webdriver.WebDriver.schedule (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/webdriver.js:246:15)
at webdriver.WebDriver.findElement (/home/s5rich/lib/selenium/node_modules_osx/selenium-webdriver/lib/webdriver/webdriver.js:685:17)
at Context.<anonymous> (/home/s5rich/test/selenium/acceptance/simple.js:12:10)
at Test.Runnable.run (/usr/local/lib/node_modules/mocha/lib/runnable.js:194:15)
at Runner.runTest (/usr/local/lib/node_modules/mocha/lib/runner.js:355:10)
at /usr/local/lib/node_modules/mocha/lib/runner.js:401:12
at next (/usr/local/lib/node_modules/mocha/lib/runner.js:281:14)
at /usr/local/lib/node_modules/mocha/lib/runner.js:290:7
at next (/usr/local/lib/node_modules/mocha/lib/runner.js:234:23)
at Object._onImmediate (/usr/local/lib/node_modules/mocha/lib/runner.js:258:5)
at processImmediate [as _immediateCallback] (timers.js:330:15)
A failed test also yields the following output from Selenium Server:
23:25:34.742 INFO - Executing: [new session: {browserName=phantomjs}] at URL: /session)
23:25:34.743 INFO - Creating a new session for Capabilities [{browserName=phantomjs}]
23:25:34.744 INFO - executable: /usr/local/bin/phantomjs
23:25:34.744 INFO - port: 2897
23:25:34.744 INFO - arguments: [--webdriver=2897, --webdriver-logfile=/home/s5rich/phantomjsdriver.log]
23:25:34.744 INFO - environment: {}
PhantomJS is launching GhostDriver...
[INFO - 2013-07-24T05:25:34.879Z] GhostDriver - Main - running on port 2897
[INFO - 2013-07-24T05:25:35.270Z] Session [77a0a110-f421-11e2-a6fd-61cd002d7d02] - CONSTRUCTOR - Desired Capabilities: {"browserName":"phantomjs"}
[INFO - 2013-07-24T05:25:35.270Z] Session [77a0a110-f421-11e2-a6fd-61cd002d7d02] - CONSTRUCTOR - Negotiated Capabilities: {"browserName":"phantomjs","version":"1.9.1","driverName":"ghostdriver","driverVersion":"1.0.3","platform":"linux-unknown-32bit","javascriptEnabled":true,"takesScreenshot":true,"handlesAlerts":false,"databaseEnabled":false,"locationContextEnabled":false,"applicationCacheEnabled":false,"browserConnectionEnabled":false,"cssSelectorsEnabled":true,"webStorageEnabled":false,"rotatable":false,"acceptSslCerts":false,"nativeEvents":true,"proxy":{"proxyType":"direct"}}
[INFO - 2013-07-24T05:25:35.270Z] SessionManagerReqHand - _postNewSessionCommand - New Session Created: 77a0a110-f421-11e2-a6fd-61cd002d7d02
23:25:35.275 INFO - Done: /session
23:25:35.283 INFO - Executing: org.openqa.selenium.remote.server.handler.GetSessionCapabilities#13b4ce4 at URL: /session/b62d0c67-2000-439c-a0bd-f2c100350dee)
23:25:35.284 INFO - Done: /session/b62d0c67-2000-439c-a0bd-f2c100350dee
23:25:35.297 INFO - Executing: [get: http://#### REDACTED ####/wp-login.php] at URL: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/url)
23:25:35.592 INFO - Done: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/url
23:25:35.597 INFO - Executing: [find element: By.selector: #user_login] at URL: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element)
23:25:35.619 INFO - Done: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element
23:25:35.631 INFO - Executing: [send keys: 0 org.openqa.selenium.support.events.EventFiringWebDriver$EventFiringWebElement#240035bc, [#### REDACTED ####]] at URL: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element/0/value)
23:25:35.683 INFO - Done: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element/0/value
23:25:35.695 INFO - Executing: [find element: By.selector: #user_pass] at URL: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element)
23:25:35.712 INFO - Done: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element
23:25:35.723 INFO - Executing: [send keys: 1 org.openqa.selenium.support.events.EventFiringWebDriver$EventFiringWebElement#240035bd, [#### REDACTED ####]] at URL: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element/1/value)
23:25:35.783 INFO - Done: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element/1/value
23:25:35.800 INFO - Executing: [find element: By.selector: #wp-submit] at URL: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element)
23:25:35.822 INFO - Done: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element
23:25:35.832 INFO - Executing: [click: 2 org.openqa.selenium.support.events.EventFiringWebDriver$EventFiringWebElement#240035be] at URL: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element/2/click)
23:25:36.105 INFO - Done: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element/2/click
23:25:36.121 INFO - Executing: [find element: By.selector: #wpwrap] at URL: /session/b62d0c67-2000-439c-a0bd-f2c100350dee/element)
e = java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
23:25:36.285 WARN - Exception thrown
org.openqa.selenium.NoSuchElementException: Error Message => 'Unable to find element with css selector '#wpwrap''
caused by Request => {"headers":{"Accept":"application/json, image/png","Connection":"Keep-Alive","Content-Length":"42","Content-Type":"application/json; charset=utf-8","Host":"localhost:2897"},"httpVersion":"1.1","method":"POST","post":"{\"using\":\"css selector\",\"value\":\"#wpwrap\"}","url":"/element","urlParsed":{"anchor":"","query":"","file":"element","directory":"/","path":"/element","relative":"/element","port":"","host":"","password":"","user":"","userInfo":"","authority":"","protocol":"","source":"/element","queryKey":{},"chunks":["element"]},"urlOriginal":"/session/77a0a110-f421-11e2-a6fd-61cd002d7d02/element"}
Command duration or timeout: 149 milliseconds
For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html
Build info: version: '2.33.0', revision: '4e90c97', time: '2013-05-22 15:32:38'
System info: os.name: 'Linux', os.arch: 'i386', os.version: '2.6.32-042stab076.8', java.version: '1.7.0'
Session ID: 77a0a110-f421-11e2-a6fd-61cd002d7d02
Driver info: org.openqa.selenium.phantomjs.PhantomJSDriver
Capabilities [{platform=LINUX, acceptSslCerts=false, javascriptEnabled=true, browserName=phantomjs, rotatable=false, driverVersion=1.0.3, locationContextEnabled=false, version=1.9.1, databaseEnabled=false, cssSelectorsEnabled=true, handlesAlerts=false, browserConnectionEnabled=false, proxy={proxyType=direct}, webStorageEnabled=false, nativeEvents=true, driverName=ghostdriver, applicationCacheEnabled=false, takesScreenshot=true}]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.openqa.selenium.remote.ErrorHandler.createThrowable(ErrorHandler.java:191)
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:145)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:554)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:307)
at org.openqa.selenium.remote.RemoteWebDriver.findElementByCssSelector(RemoteWebDriver.java:396)
at org.openqa.selenium.By$ByCssSelector.findElement(By.java:407)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:299)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.openqa.selenium.support.events.EventFiringWebDriver$2.invoke(EventFiringWebDriver.java:101)
at $Proxy1.findElement(Unknown Source)
at org.openqa.selenium.support.events.EventFiringWebDriver.findElement(EventFiringWebDriver.java:180)
at org.openqa.selenium.remote.server.handler.FindElement.call(FindElement.java:47)
at org.openqa.selenium.remote.server.handler.FindElement.call(FindElement.java:1)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at org.openqa.selenium.remote.server.DefaultSession$1.run(DefaultSession.java:169)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.openqa.selenium.remote.ScreenshotException: Screen shot has been taken
Build info: version: '2.33.0', revision: '4e90c97', time: '2013-05-22 15:32:38'
System info: os.name: 'Linux', os.arch: 'i386', os.version: '2.6.32-042stab076.8', java.version: '1.7.0'
Driver info: driver.version: EventFiringWebDriver
at org.openqa.selenium.remote.ErrorHandler.throwIfResponseFailed(ErrorHandler.java:125)
... 20 more
Caused by: org.openqa.selenium.remote.ErrorHandler$UnknownServerException: Error Message => 'Unable to find element with css selector '#wpwrap''
caused by Request => {"headers":{"Accept":"application/json, image/png","Connection":"Keep-Alive","Content-Length":"42","Content-Type":"application/json; charset=utf-8","Host":"localhost:2897"},"httpVersion":"1.1","method":"POST","post":"{\"using\":\"css selector\",\"value\":\"#wpwrap\"}","url":"/element","urlParsed":{"anchor":"","query":"","file":"element","directory":"/","path":"/element","relative":"/element","port":"","host":"","password":"","user":"","userInfo":"","authority":"","protocol":"","source":"/element","queryKey":{},"chunks":["element"]},"urlOriginal":"/session/77a0a110-f421-11e2-a6fd-61cd002d7d02/element"}
Build info: version: '2.33.0', revision: '4e90c97', time: '2013-05-22 15:32:38'
System info: os.name: 'Linux', os.arch: 'i386', os.version: '2.6.32-042stab076.8', java.version: '1.7.0'
Driver info: driver.version: unknown
23:25:36.293 WARN - Exception: Error Message => 'Unable to find element with css selector '#wpwrap''
caused by Request => {"headers":{"Accept":"application/json, image/png","Connection":"Keep-Alive","Content-Length":"42","Content-Type":"application/json; charset=utf-8","Host":"localhost:2897"},"httpVersion":"1.1","method":"POST","post":"{\"using\":\"css selector\",\"value\":\"#wpwrap\"}","url":"/element","urlParsed":{"anchor":"","query":"","file":"element","directory":"/","path":"/element","relative":"/element","port":"","host":"","password":"","user":"","userInfo":"","authority":"","protocol":"","source":"/element","queryKey":{},"chunks":["element"]},"urlOriginal":"/session/77a0a110-f421-11e2-a6fd-61cd002d7d02/element"}
Build info: version: '2.33.0', revision: '4e90c97', time: '2013-05-22 15:32:38'
System info: os.name: 'Linux', os.arch: 'i386', os.version: '2.6.32-042stab076.8', java.version: '1.7.0'
Driver info: driver.version: unknown

From what I see, it is a simple problem to solve. You have a unhandled exception that is being thrown when there is a failure: NoSuchElementException . I don't think you need to restart your grid node every time (assuming you are running your grid hub separate from your grid node instances). It may be that successive runs of the browser from your Grid Node use just enough more memory to cause a minor delay in the page, breaking your script. All you need to do is handle the NoSuchElementException gracefully by wrapping it in a retry try loop. You can also effectively do similar using FluentWait with the .ignoring method.

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