Develop Reference

I Cant install puppeteer

I ran this script -> npm i --save-dev puppeteer to install puppeteer for e2e testing purposes.
But there is an error while installing:
C:\Users\Mora\Desktop\JS\Testing>npm i --save-dev puppeteer
> puppeteer#13.1.3 install C:\Users\Mora\Desktop\JS\Testing\node_modules\puppete
er
> node install.js
ERROR: Failed to set up Chromium r950341! Set "PUPPETEER_SKIP_DOWNLOAD" env vari
able to skip download.
Error: Download failed: server returned code 403. URL: https://storage.googleapi
s.com/chromium-browser-snapshots/Win/950341/chrome-win.zip
at C:\Users\Mora\Desktop\JS\Testing\node_modules\puppeteer\lib\cjs\puppeteer
\node\BrowserFetcher.js:367:27
at ClientRequest.requestCallback (C:\Users\Mora\Desktop\JS\Testing\node_modu
les\puppeteer\lib\cjs\puppeteer\node\BrowserFetcher.js:493:13)
at Object.onceWrapper (events.js:483:26)
at ClientRequest.emit (events.js:376:20)
at HTTPParser.parserOnIncomingClient (_http_client.js:647:27)
at HTTPParser.parserOnHeadersComplete (_http_common.js:126:17)
at TLSSocket.socketOnData (_http_client.js:515:22)
at TLSSocket.emit (events.js:376:20)
at addChunk (internal/streams/readable.js:309:12)
at readableAddChunk (internal/streams/readable.js:284:9)
npm WARN js-testing-introduction#1.0.0 No repository field.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#2.3.2 (node_modules\fse
vents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#
2.3.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"ia32"
})
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.13 (node_modules\wa
tchpack-chokidar2\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#
1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"ia32
"})
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! puppeteer#13.1.3 install: `node install.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the puppeteer#13.1.3 install script.
npm ERR! This is probably not a problem with npm. There is likely additional log
ging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Mora\AppData\Roaming\npm-cache\_logs\2022-02-06T10_19_25_3
69Z-debug.log
How can i fix this?

It looks like it is not able to download chromium from https://storage.googleapis.com/chromium-browser-snapshots/Win/950341/chrome-win.zip.
Check whether your network is e.g behind a proxy or storage.googleapis.com was blocked by the firewall.

// do not install a puppeteer
ran this script -> npm install --ignore-scripts puppeteer

Grunt error "Grunt attempted to load a .coffee file but CoffeeScript was not installed."

I am following this tutorial to test the AppRTC project that was created with WebRTC. Before starting the app server I need to run this command line "grunt build" to recompile the App Engine package.
When I run this command line grunt build there are error messages displayed :
Loading "jinja.coffee" tasks...ERROR
>> Error: Grunt attempted to load a .coffee file but CoffeeScript was not installed.
>> Please run `npm install --dev coffeescript` to enable loading CoffeeScript.
Running "shell:buildAppEnginePackage" (shell) task
fatal: not a git repository (or any parent up to mount point /mnt)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
fatal: not a git repository (or any parent up to mount point /mnt)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
Running "shell:genJsEnums" (shell) task
src >>> src/web_app/js
Running "shell:copyAdapter" (shell) task
Running "shell:copyJsFiles" (shell) task
Done.
After I run this command line npm install --dev coffeescript to install CoffeeScript but I get another error message
npm WARN install Usage of the `--dev` option is deprecated. Use `--include=dev` instead.
npm ERR! code EBADPLATFORM
npm ERR! notsup Unsupported platform for fsevents#2.1.3: wanted {"os":"darwin"} (current: {"os":"linux","arch":"x64"})
npm ERR! notsup Valid OS: darwin
npm ERR! notsup Valid Arch: undefined
npm ERR! notsup Actual OS: linux
npm ERR! notsup Actual Arch: x64
Later i tried to install CoffeeScript again with this command line npm install --include=dev coffeescript because the previous command line is obsolete. But I still get the error in my command line :
npm ERR! code EBADPLATFORM
npm ERR! notsup Unsupported platform for fsevents#2.1.3: wanted {"os":"darwin"} (current: {"os":"linux","arch":"x64"})
npm ERR! notsup Valid OS: darwin
npm ERR! notsup Valid Arch: undefined
npm ERR! notsup Actual OS: linux
npm ERR! notsup Actual Arch: x64
npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2021-03-11T15_42_35_280Z-debug.log
I can't seem to see where problem is coming from, I have tried all three of these command line to fix this error, but it doesn't work.

I am installing polymer in visual studio code but there are many errors I am getting a lot of errors

C:\Program Files\nodejs>npm install -g bower
npm WARN deprecated bower#1.8.8: We don't recommend using Bower for new projects. Please consider Yarn and Webpack or Parcel. You can read how to migrate legacy project here: https://bower.io/blog/2017/how-to-migrate-away-from-bower/
C:\Users\Deepanshi\AppData\Roaming\npm\bower -> C:\Users\Deepanshi\AppData\Roaming\npm\node_modules\bower\bin\bower
bower#1.8.8
added 1 package from 1 contributor in 14.243s
C:\Program Files\nodejs>npm install -g polymer-cli#next
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#1.2.4 (node_modules\polymer-cli\node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#1.2.4: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"ia32"})
npm ERR! code EEXIST
npm ERR! path C:\Users\Deepanshi\AppData\Roaming\npm\node_modules\polymer-cli\bin\polymer.js
npm ERR! dest C:\Users\Deepanshi\AppData\Roaming\npm\polymer
npm ERR! EEXIST: file already exists, cmd shim 'C:\Users\Deepanshi\AppData\Roaming\npm\node_modules\polymer-cli\bin\polymer.js' -> 'C:\Users\Deepanshi\AppData\Roaming\npm\polymer'
npm ERR! File exists: C:\Users\Deepanshi\AppData\Roaming\npm\polymer
npm ERR! Remove the existing file and try again, or run npm
npm ERR! with --force to overwrite files recklessly.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\Deepanshi\AppData\Roaming\npm-cache_logs\2020-10-07T12_56_44_680Z-debug.log

Try this :
npm i -g --force npm (note the --force flag)
If your output is get running npm install -g npm:
You can fix it with "brew reinstall node"
So :
brew reinstall node
npm i -g --force npm

sh: node: command not found - when npm install command on AWS Instance

I want to run a node app on AWS EC2 instance. I installed node through this official method by AWS Doc https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/setting-up-node-on-ec2-instance.html.
Then, I can view the version of node and npm but when I give the command npm install on the node app folder , it starts to install a few dependencies and then it fails. with the error as
> core-js#2.6.11 postinstall /var/apps/backend-master/node_modules/core-js
> node -e "try{require('./postinstall')}catch(e){}"
sh: node: command not found
npm WARN mysql_db#1.0.0 No description
npm WARN mysql_db#1.0.0 No repository field.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents#2.1.3 (node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents#2.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm ERR! code ELIFECYCLE
npm ERR! syscall spawn
npm ERR! file sh
npm ERR! errno ENOENT
npm ERR! core-js#2.6.11 postinstall: `node -e "try{require('./postinstall')}catch(e){}"`
npm ERR! spawn ENOENT
npm ERR!
npm ERR! Failed at the core-js#2.6.11 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! /root/.npm/_logs/2020-06-16T19_28_07_911Z-debug.log
Do let me know if there is an additional step to do or if I am wrong somewhere

Why isn't anything installing on Node.js?

Today I decided to try out creating a discord bot in Node.js. When I went to install it, I started getting errors. I started to search the internet to find the solution, when I found out nothing was installing. For example,
C:\Users\aidan\Documents\discord bot>npm install --global --production windows-build-tools
npm WARN engine windows-build-tools#1.2.1: wanted: {"node":">=4.0.0"} (current: {"node":"0.12.2","npm":"2.7.4"})
npm WARN engine request#2.81.0: wanted: {"node":">= 4"} (current: {"node":"0.12.2","npm":"2.7.4"})
npm WARN engine har-validator#4.2.1: wanted: {"node":">=4"} (current: {"node":"0.12.2","npm":"2.7.4"})
npm WARN engine har-schema#1.0.5: wanted: {"node":">=4"} (current: {"node":"0.12.2","npm":"2.7.4"})
\
windows-build-tools#1.2.1 postinstall C:\Users\aidan\AppData\Roaming\npm\node_modules\windows-build-tools
node ./lib/index.js
Downloading BuildTools_Full.exe
[> ] 0.0% (0 B/s)
Downloading python-2.7.11.msi
[> ] 0.0% (0 B/s)
Downloaded python-2.7.11.msi. Saved to C:\Users\aidan\.windows-build-tools\python-2.7.11.msi.
Starting installation...
Launched installers, now waiting for them to finish.
This will likely take some time - please be patient!
Waiting for installers... -C:\Users\aidan\AppData\Roaming\npm\node_modules\windows-build-tools\lib\install\tailer.js:92
if (data.includes('Variable: IsInstalled = 1') || data.includes('Variabl
^
TypeError: undefined is not a function
at Tailer.handleData (C:\Users\aidan\AppData\Roaming\npm\node_modules\windows-build-tools\lib\install\tailer.js:92:16)
at null.<anonymous> (C:\Users\aidan\AppData\Roaming\npm\node_modules\windows-build-tools\lib\install\tailer.js:72:16)
at wrapper [as _onTimeout] (timers.js:265:14)
at Timer.listOnTimeout (timers.js:110:15)
npm ERR! Windows_NT 6.3.9600
npm ERR! argv "C:\\Program Files (x86)\\nodejs\\\\node.exe" "C:\\Program Files (x86)\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "--global" "--production" "windows-build-tools"
npm ERR! node v0.12.2
npm ERR! npm v2.7.4
npm ERR! code ELIFECYCL
npm ERR! windows-build-tools#1.2.1 postinstall: `node ./lib/index.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the windows-build-tools#1.2.1 postinstall script 'node ./lib/index.js'.
npm ERR! This is most likely a problem with the windows-build-tools package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! node ./lib/index.js
npm ERR! You can get their info via:
npm ERR! npm owner ls windows-build-tools
npm ERR! There is likely additional logging output above.
npm ERR! Please include the following file with any support request:
npm ERR! C:\Users\aidan\Documents\discord bot\npm-debug.log
C:\Users\aidan\Documents\discord bot>
was what I got when I attempted to install build tools. I'm using Windows 10 Creators Update on a 64 bit machine.
Oh, yeah, and when I tried to install discord.js:
C:\Users\aidan\Documents\discord bot>npm install discord.js
npm WARN engine discord.js#11.1.0: wanted: {"node":">=6.0.0"} (current: {"node":"0.12.2","npm":"2.7.4"})
npm WARN peerDependencies The peer dependency bufferutil#^3.0.0 included from discord.js will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerDependency
npm WARN peerDependencies in npm 3+. Your application will need to depend on it explicitly.
npm WARN peerDependencies The peer dependency erlpack#hammerandchisel/erlpack included from discord.js will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerDependency
npm WARN peerDependencies in npm 3+. Your application will need to depend on it explicitly.
npm WARN peerDependencies The peer dependency node-opus#^0.2.5 included from discord.js will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerDependency
npm WARN peerDependencies in npm 3+. Your application will need to depend on it explicitly.
npm WARN peerDependencies The peer dependency opusscript#^0.0.3 included from discord.js will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerDependency
npm WARN peerDependencies in npm 3+. Your application will need to depend on it explicitly.
npm WARN peerDependencies The peer dependency sodium#^2.0.1 included from discord.js will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerDependency
npm WARN peerDependencies in npm 3+. Your application will need to depend on it explicitly.
npm WARN peerDependencies The peer dependency libsodium-wrappers#^0.5.1 included from discord.js will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerDependency
npm WARN peerDependencies in npm 3+. Your application will need to depend on it explicitly.
npm WARN peerDependencies The peer dependency uws#^0.14.1 included from discord.js will no
npm WARN peerDependencies longer be automatically installed to fulfill the peerDependency
npm WARN peerDependencies in npm 3+. Your application will need to depend on it explicitly.
npm WARN engine uws#0.14.5: wanted: {"node":">=4"} (current: {"node":"0.12.2","npm":"2.7.4"})
|
> bufferutil#3.0.0 install C:\Users\aidan\Documents\discord bot\node_modules\bufferutil
> prebuild-install || node-gyp rebuild
prebuild-install info begin Prebuild-install version 2.1.2
prebuild-install info looking for local prebuild # prebuilds\bufferutil-v3.0.0-node-v14-win32-ia32.tar.gz
prebuild-install WARN install EPERM, access 'C:\Users\aidan\AppData\Roaming\npm-cache'
C:\Users\aidan\Documents\discord bot\node_modules\bufferutil>if not defined npm_config_node_gyp (node "C:\Program Files (x86)\nodejs\node_modules\npm\bin\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild ) else (rebuild)
Traceback (most recent call last):
File "C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\gyp\gyp_main.py", line 18, in <module>
sys.exit(gyp.script_main())
File "C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\gyp\pylib\gyp\__init__.py", line 534, in script_main
return main(sys.argv[1:])
File "C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\gyp\pylib\gyp\__init__.py", line 527, in main
return gyp_main(args)
File "C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\gyp\pylib\gyp\__init__.py", line 503, in gyp_main
options.circular_check)
File "C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\gyp\pylib\gyp\__init__.py", line 98, in Load
generator.CalculateVariables(default_variables, params)
File "C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\gyp\pylib\gyp\generator\msvs.py", line 1867, in CalculateVariables
generator_flags.get('msvs_version', 'auto'))
File "C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\gyp\pylib\gyp\MSVSVersion.py", line 402, in SelectVisualStudioVersion
versions = _DetectVisualStudioVersions(version_map[version], 'e' in version)
KeyError: '2015'
gyp ERR! configure error
gyp ERR! stack Error: `gyp` failed with exit code: 1
gyp ERR! stack at ChildProcess.onCpExit (C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\lib\configure.js:343:16)
gyp ERR! stack at ChildProcess.emit (events.js:110:17)
gyp ERR! stack at Process.ChildProcess._handle.onexit (child_process.js:1074:12)
gyp ERR! System Windows_NT 6.3.9600
gyp ERR! command "node" "C:\\Program Files (x86)\\nodejs\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd C:\Users\aidan\Documents\discord bot\node_modules\bufferutil
gyp ERR! node -v v0.12.2
gyp ERR! node-gyp -v v1.0.3
gyp ERR! not ok
> uws#0.14.5 install C:\Users\aidan\Documents\discord bot\node_modules\uws
> node-gyp rebuild > build_log.txt 2>&1 || exit 0
Thanks for your help!
-Aidan

I do not use Windows but found this blog from Treehouse.
http://blog.teamtreehouse.com/install-node-js-npm-windows
*Make sure you install node 1st, npm 2nd, and then any packages you want