NightmareJS on c9.io is literally a nightmare.
i cannot get it to work at all i am going to run through the whole process from start to finish.
Step 1
I create a new workspace
Hosted
Node.js
Step 2
Start Editing my new workspace
I open Package.json and add what i need heres my file.
{
"name": "chat-example",
"version": "0.0.0",
"description": "A chat example to showcase how to use `socket.io` with a static `express` server",
"main": "server.js",
"repository": "",
"author": "Mostafa Eweda <mostafa#c9.io>",
"dependencies": {
"async": "~0.2.8",
"express": "~3.2.4",
"socket.io": "~0.9.14",
"phantomjs": "*",
"casperjs": "*",
"nightmarejs": "*",
"utils": "*",
"crypto": "*"
}
}
i then run 'npm install' in the console.
Step 3
this is where it does not work i try all theses diffrent commands to get the examples running and the errors i get.
#stackoverflow:~/828481 $ cd node_modules/nightmarejs/examples/
#stackoverflow:~/828481/node_modules/nightmarejs/examples $ node server.js casper.js
Error: Cannot find module 'crypto'
phantomjs://bootstrap.js:289
phantomjs://bootstrap.js:254 in require
/var/lib/stickshift/5345392f50044693d40008de/app-root/data/828481/node_modules/utils/utils.js:7
/var/lib/stickshift/5345392f50044693d40008de/app-root/data/828481/node_modules/utils/utils.js:117
/var/lib/stickshift/5345392f50044693d40008de/app-root/data/828481/node_modules/utils/utils.js:118
Error: Cannot find module 'casper'
phantomjs://bootstrap.js:289
phantomjs://bootstrap.js:254 in require
/var/lib/stickshift/5345392f50044693d40008de/app-root/data/828481/node_modules/nightmarejs/lib/nightmareClient.js:4
/var/lib/stickshift/5345392f50044693d40008de/app-root/data/828481/node_modules/nightmarejs/lib/nightmareClient.js:83
TypeError: 'undefined' is not a function (evaluating 'require(phantom.args[3].slice(13)+'nightmareClient.js').Nightmare({
exitOnError: false
})')
/var/lib/stickshift/5345392f50044693d40008de/app-root/data/828481/node_modules/nightmarejs/lib/nightmareTest.js:16
I have it working. I also had trouble at first. I tried downloading the prebuilt package, but I can't seem to get that working. I ended up just adding the following to my package.json file and ran npm update and all was well:
"nightmare": "^1.5.0",
"phantomjs": "~1.9.7"
Probably they've updated the npm repo and everything since you've posted this. I bet it was frustrating. I don't have those examples in my install, but I would guess you could run them if you had all of the right pre-req's installed.
Related
I've had a discord bot for a few weeks and everything has been working perfectly. Today I added a command on my git repository and suddenly heroku showed me this error:
Error: Cannot find module 'discord.js'
I didn't change anything in the main bot code nor in the package.json file. I removed the new command I added and pushed the new changes again, and still got the same error.
I tried to reinstall discord.js with npm install discord.js --save and updated the package.json with the new version. Still nothing.
The bot works if I run it locally, and it also works if I roll back to the last working build on Heroku.
My bot.js code to load the library:
const Discord = require("discord.js");
My package.json file:
{
"name": "redacted",
"description": "redacted",
"version": "1.0.0",
"main": "bot.js",
"scripts": {
"start": "node bot.js"
},
"dependencies": {
"discord.js": "^11.5.1",
"request": "2.81.0"
}
}
I don't know what to do because the code is exactly the same as the previous versions. I don't understand why I'm getting this error.
I believe the error may lie in your package.json file, you are a missing a few key things:
You must include the versions to use for both node and npm (I'd recommend using the latest):
"engines": {
"node": "12.14.1",
"npm": "6.13.4"
},
Next you need to also define your git repository like so:
"repository": {
"type": "git",
"url": "git+link"
},
As well make sure in your Procfile you have:
worker: npm start
In your requirements.txt make sure to have:
npm install discord.js
You can read more on hosting your discord.js bot on Heroku here.
Early days in the development of my first npm script, and struggling somewhat. I'm on Ubuntu LTS with the latest nvm, node, npm and pnpm releases.
Node + npm have been installed using nvm, pnpm installed using npm, and several modules installed locally (i.e. without the -g flag) using pnpm. No sudo was necessary. The resulting package.json:
{
"name": "javascript-development-environment",
"version": "1.0.0",
"description": "JavaScript development environment cobbled together using various online sources",
"scripts": {
"prestart": "./node_modules/.bin/babel buildScripts/startMessage.js",
"start": "./node_modules/.bin/babel buildScripts/srcServer.js"
},
"author": "Laird o' the Windy Waas",
"license": "MIT",
"dependencies": {
"#babel/polyfill": "^7.0.0"
},
"devDependencies": {
"#babel/cli": "^7.1.5",
"#babel/core": "^7.1.6",
"#babel/preset-env": "^7.1.6",
"chalk": "^2.4.1",
"express": "^4.16.4",
"open": "^0.0.5",
"path": "^0.12.7"
}
}
With only Firefox 60.0.1 installed, on doing a 'pnpm start' using node, a browser window is opened "Hello World!" displayed, and terminal control has to be regained using a CTRL-C. -> All ok.
If I substitute in babel using the path as shown above (which results from the same issues described in this post), the buildScripts code is echoed to the terminal, but no browser window opens, and terminal control is released immediately on completion. The npm debugger provides no useful feedback. -> Something not working..
As the "Hello World!" code is traversed correctly using node (and remains unchanged for the babel traversal), it is not the source of the problem.
Here my babel config files:
.babelrc
{
"presets": [
"#babel/preset-env"
]
}
babel.config.js
const presets = [
[
"#babel/env",
{
targets: {
edge: "17",
firefox: "61",
chrome: "67",
safari: "11.1",
opera: "56"
},
useBuiltIns: "usage"
},
],
];
module.exports = { presets };
The problem looks to be that babel is not passing the transpiled code on to nodejs / express. Bound to be something simple, but I'm just going round in circles..
One thing I found myself asking is whether there might be a conflict between the various env presets across .babelrc, babel.config.js and package.json. Successive parking of the .babelrc and babel.config.js files, however, brought no change/advance.
I have also noticed that both (nvms) node and (ubuntus) nodejs are currently installed:
$ which node
/home/<myusername>/.nvm/versions/node/v10.13.0/bin/node
$ which nodejs
/usr/bin/nodejs
However, as everything to do with node and npm was installed using nvm, this shouldn't be a problem.
I could, I suppose, try installing babel globally, but with this widely frowned apon. I'd prefer a solution reflecting 'best practice'.
Thanks for any suggestions.
In earlier years, tutor material suggested babel-node would start npm / node (and hence express) on the user's behalf.
babel-node now no longer seems to be recognised. Attempts at using the babel-node command failed, and simply using node in it's place resulted in the transpiler output being dumped to the terminal.
babel, (in our case) pnpm, and node now have to be explicitly called, the latter referencing the transpiled code. node appears to handle interfacing with express.
After some experiment, therefore, the following changes (in package.json) appear to work fine:
"scripts": {
"prestart": "./node_modules/.bin/babel buildScripts/startMessage.js -d dist",
"build": "./node_modules/.bin/babel buildScripts/srcServer.js -d dist",
"start": "pnpm run build && node dist/startMessage.js && node dist/srcServer.js"
},
These result both in a tidy console output and result in "Hallo World!" being displayed in a freshly opened browser window.
Just hope this is of use to someone else.. ;-)
basically, I am Using Gandi Simple Hosting for a Node.js application. I would like to use a specific Node.js version. I'm ready that all I had to do was making a ".nvmrc" file and putting the required version number in it.
Now my .nvmrc file looks like this.
6.11.0
And my package.json file is like this.
{
"name": "name-of-my-app",
"version": "0.3.0",
"dependencies": {
"express": "3.x",
"socket.io": "1.x",
"mysql": "2.x",
"ejs": "2.x",
"emailjs": "1.x",
"svg-captcha": "1.x",
"sitemap": "1.x",
"discord.js": "11.x"
},
"scripts": {
"start": "node server.js"
}
}
When I restart my server, the console says the following.
/srv/data/web/vhosts/default /srv/data/web/vhosts/default
N/A: version "N/A" is not yet installed.
You need to run "nvm install N/A" to install it before using it.
Despite looking at the Gandi documentation, I can't find out what is wrong.
Thanks you in advance for your help! :-)
Noël.
I got an answer from the Gandi Technical Assistance.
I was told to deploy my code using Git. I made it work by following these inscructions: https://wiki.gandi.net/en/simple/git.
I've begun using Node.js to make web applications. It's really awesome. I've come across a few modules that I want to incorporate into my build. I can work with the modules in Terminal after a global npm install. When it comes time to add them to my application, I have no idea how to go about placing them in my directory structure and I haven't found any good documentation on this. My typical node.js directory is:
ROOT
Server
server.js
node-modules
Client
index.html
css
-main.css
javascript
-main.js
-jquery.js
My process for installing the modules has been:
I cd into my Server file and run npm install
Then I go to my package.json file and include the module in the dependencies
{
"name": "application-name",
"version": "0.0.1",
"private": true,
"scripts": {
"start": "node app"
},
"dependencies": {
"express": "3.1.0",
"jade": "*",
"stylus": "*",
"<node-module-here>": "1.0.x",
},
"engines": {
"node": "0.10.0",
"npm": "1.2.14"
},
}
After that, I head over to the server.js file I add:
module.exports = require('<path_to_node-module_lib>');
When I run functions that are dependent on the modules on the Client side (functions that work in Terminal), I don't receive an error but the function won't run. Because I'm not receiving errors I have no idea about how to debug. If anyone can recognize some fatal flaw in my structure or implementation and can offer some recommendations, I offer my first born.
Im trying to upload a node.js app into cloud foundry, im not going to use Express Framework, but when doing "vcm push" Im getting this error.
Uploading Application:
No such file or directory - /Users/jtomasrl/Code/node/pronto/node_modules/express
here is my package.json
{
"name": "karaoke-api",
"version": "0.0.1",
"dependencies": {
"pronto": "*",
"pronto-mongodb": "*"
},
"engines": {
"node": "0.8.x",
"npm": "1.1.x"
}
}
Just for the sake of providing an "answer", when this situation does arise, it's worth emptying node_modules/.bin or even removing node_modules itself and re-installing modules with;
npm install