I am using elasticsearch-exporter to export data from Elasticsearch.
The tool initially is a nodejs application.
When I try to use the following command node exporter.js to make the tool list all the available options, it crashes with the following exception
/home/me/storage/Elasticsearch-Exporter/log.js:54
exports.error = (...args) => !capture("ERROR", args) && console.log(timestamp() + util.format(...args).red);
^^^
SyntaxError: Unexpected token ...
at exports.runInThisContext (vm.js:53:16)
at Module._compile (module.js:374:25)
at Object.Module._extensions..js (module.js:417:10)
at Module.load (module.js:344:32)
at Function.Module._load (module.js:301:12)
at Module.require (module.js:354:17)
at require (internal/module.js:12:17)
at Object.<anonymous> (/home/anas/storage/Elasticsearch-Exporter/exporter.js:9:11)
at Module._compile (module.js:410:26)
at Object.Module._extensions..js (module.js:417:10)
here is the line where the exception is thrown
exports.error = (...args) => !capture("ERROR", args) && console.log(timestamp() + util.format(...args).red);
I think the error is related to a different version of nodejs but I am not sure.
Here is the output of the node --version command v4.2.6
Here is the output of the npm --version command 3.10.6
Yes, indeed, ... is called the spread operator and is only available since Node.js 6
The elasticsearch-exporter project declares in its package.json file that it only works with node version > 6
So since you're running Node.js 4.2.6, you either need to upgrade your Node.js installation or fork the elasticsearch-exporter project and modify it to work with Node.js 4.2.6.
Related
I install node.js with pm2, all install fine but when i try to do pm2 monit give me this error.
$ pm2 monit
/home/node/.nvm/versions/node/v8.11.3/lib/node_modules/pm2/node_modules/fast-printf/dist/src/tokenize.js:4
const TokenRule = /(?:%(?<flag>([+0-]|-\+))?(?<width>\d+)?(?<position>\d+\$)?(?<precision>\.\d+)?(?<conversion>[%BCESb-iosux]))|(\\%)/g;
^
SyntaxError: Invalid regular expression: /(?:%(?<flag>([+0-]|-\+))?(?<width>\d+)?(?<position>\d+\$)?(?<precision>\.\d+)?(?<conversion>[%BCESb-iosux]))|(\\%)/: Invalid group
at Object.<anonymous> (/home/node/.nvm/versions/node/v8.11.3/lib/node_modules/pm2/node_modules/fast-printf/dist/src/tokenize.js:4:19)
at Module._compile (module.js:652:30)
at Object.Module._extensions..js (module.js:663:10)
at Module.load (module.js:565:32)
at tryModuleLoad (module.js:505:12)
at Function.Module._load (module.js:497:3)
at Module.require (module.js:596:17)
at require (internal/module.js:11:18)
at Object.<anonymous> (/home/node/.nvm/versions/node/v8.11.3/lib/node_modules/pm2/node_modules/fast-printf/dist/src/createPrintf.js:5:20)
at Module._compile (module.js:652:30)
I tried servers nodejs version and always give me this error.
If you paste your regular expression into a regex sandbox, like this one:
https://regex101.com/r/GkwWH2/1
You'll see that it doesn't show any syntax errors.
That would make me suspect that you're running a back-level version of Node JS. And in fact, if you look at your stack trace, you see that you are running Node 8.11.3
at Object.<anonymous> (/home/node/.nvm/versions/node/v8.11.3/lib/node_modules/pm2/node_modules/fas
That regular expression is using features (such as named capture groups) that did not come into Node.js until Node v10.*.
I suggest you update to the latest LTS version of Node, version 14.*: from your stack trace it would appear that you're using NVM, so it should be a simple matter of
sudo nvm install lts/fermium
should do it.
I hav been trying to run the vue-electron app. But the following error comes.
App threw an error during load
C:\newFolder02\pos4-desktop\node_modules\#serialport\stream\lib\index.js:103
const settings = { ...defaultSettings, ...options }
^^^
SyntaxError: Unexpected token ...
at createScript (vm.js:74:10)
at Object.runInThisContext (vm.js:116:10)
at Module._compile (module.js:533:28)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:503:32)
at tryModuleLoad (module.js:466:12)
at Function.Module._load (module.js:458:3)
at Module.require (module.js:513:17)
at require (internal/module.js:11:18)
at Object.<anonymous> (C:\newFolder02\pos4-desktop\node_modules\serialport\lib\index.js:1:175)
The error comes from the following line.
const settings = { ...defaultSettings, ...options }
I use following tools
node 8.16.0
npm 6.4.1
electron 1.8.2
It doesn't work in Windows. But it works in Mac OS.
Any idea..?
I have found a solution. You can convert the ES6 code to original JavaScript code with Babel(https://babeljs.io/en/repl).
I converted the ES6 code to vanilla JavaScript through Babel. I ticked ENV PRESET in left sidebar. I set Electron to "1.8" and Node to "8.16". It worked well.
Babel Screenshot
I'm trying to run a Bitcoin insight explorer (https://www.dgbwiki.com/index.php?title=Running_your_own_Insight_explorer). Using node v0.10.48 but I get this error (couldn't find the same problem over the internet):
digibyte#derecha-virtual-machine:~/insight$ /home/digibyte/.nvm/v0.10.48/bin/node ~/insight/node_modules/insight-bitcore-api/util/sync.js -D -v --rpc
/home/digibyte/insight/node_modules/insight-bitcore-api/node_modules/async/dist/async.js:52
function apply(fn, ...args) {
^
SyntaxError: Unexpected token .
at Module._compile (module.js:439:25)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Module.require (module.js:364:17)
at require (module.js:380:17)
at Object.<anonymous> (/home/digibyte/insight/node_modules/insight-bitcore-api/lib/HistoricSync.js:5:22)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
The offending line 52 is in this function:
function apply(fn, ...args) { // <- line 52
return (...callArgs) => fn(...args,...callArgs);
}
It looks ok to me I don't know why node gives an error.
Node.js 0.10.48 doesn't support the spread operator. The first Node.js version to support the spread operator was 5, but it's quite outdated and isn't maintained anymore. If you're already upgrading, I'd upgrade to one of the newer version still supported under LTS.
According to https://node.green/#ES2015-syntax-rest-parameters, node v0.10.48 does not support rest parameters (...args).
You should use a newer version of node (at least v6.4.0 as default support, or at least v4.9.1 with --harmony flag (node --harmony))
Apply takes an array as the second argument. Here, the spread operator (...) is laying out the elements, and thus you don't pass an array into the function, but basically comma separated arguments.
Try using .call instead of .apply, or pass args instead of ...args.
I'm currently installing a NodeJS service on an Ubuntu server. The application is written in coffeescript and runs fine on it's own. This is how I setup the project:
cd ~/test-project
nvm use v4.9.1
npm install
pm2 start index.js
However when I try to start it using pm2 i get the error below:
/usr/local/lib/node_modules/pm2/node_modules/needle/node_modules/debug/src/node.js:132
let val = process.env[key];
^^^
SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode
at exports.runInThisContext (vm.js:53:16)
at Module._compile (module.js:373:25)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Module.require (module.js:353:17)
at require (internal/module.js:12:17)
at Object.<anonymous> (/usr/local/lib/node_modules/pm2/node_modules/needle/node_modules/debug/src/index.js:9:19)
at Module._compile (module.js:409:26)
at Object.Module._extensions..js (module.js:416:10)
And after doing some testing it seems that this error occurs no matter what script I start with pm2 so there must be something that isn't configured correctly..
I don't know if it matters but the script I am trying to run needs node v4.9.1 so I am using NVM to use that version, it seems to me that it is trying to run pm2 with that same node version somehow?
Any input is greatly appreciated as I've been stuck on this for way too long!!
I had the same issue on node version 4.x,
Downgraded the pm2 and it worked.
npm uninstall -g pm2
npm install -g pm2#3.0.4
'use strict';
Add above line of code to first line of the script file. let is used when you want a variable to be scoped to a block which is supported in strict mode in node v4.
See the documentation for more details.
#Vishnu Sing this is the complete output. The index.js file looks like this:
console.log('Hello World');
ubuntu#ip-172-31-32-5:~/test-project$ nano index.js
ubuntu#ip-172-31-32-5:~/test-project$ node -v
v10.15.3
ubuntu#ip-172-31-32-5:~/test-project$ sudo pm2 start index.js
/usr/local/lib/node_modules/pm2/node_modules/needle/node_modules/debug/src/node.js:132
let val = process.env[key];
^^^
SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode
at exports.runInThisContext (vm.js:53:16)
at Module._compile (module.js:373:25)
at Object.Module._extensions..js (module.js:416:10)
at Module.load (module.js:343:32)
at Function.Module._load (module.js:300:12)
at Module.require (module.js:353:17)
at require (internal/module.js:12:17)
at Object.<anonymous> (/usr/local/lib/node_modules/pm2/node_modules/needle/node_modules/debug/src/index.js:9:19)
at Module._compile (module.js:409:26)
at Object.Module._extensions..js (module.js:416:10)
ubuntu#ip-172-31-32-5:~/test-project$
I am trying to get a particular npm package to run on Ubuntu 16.04. I am currently running the most up-to-date versions of nodejs and npm, as well as the package (turndown).
Here is the error that I get:
root#ubuntu-s-1vcpu-1gb-nyc1-01:/usr/server# nodejs index.js
/usr/server/node_modules/jsdom/lib/api.js:10
const { URL } = require("whatwg-url");
^
SyntaxError: Unexpected token {
at exports.runInThisContext (vm.js:53:16)
at Module._compile (module.js:374:25)
at Object.Module._extensions..js (module.js:417:10)
at Module.load (module.js:344:32)
at Function.Module._load (module.js:301:12)
at Module.require (module.js:354:17)
at require (internal/module.js:12:17)
at createHTMLParser (/usr/server/node_modules/turndown/lib/turndown.cjs.js:529:17)
at Object.<anonymous> (/usr/server/node_modules/turndown/lib/turndown.cjs.js:537:60)
at Module._compile (module.js:410:26)
The error states it occurs within the "turndown" package and is due to the language in the constructor. What is confusing to me is that this runs on Fedora 27 without error.
What could be causing the difference in behavior?
The answer to this question was to update my version of NodeJS. I ran into another error now, but it is package related.