Develop Reference

can't run react scripts

npm log
0 info it worked if it ends with ok
1 verbose cli [ '/usr/local/bin/node', '/usr/local/bin/npm', 'start' ]
2 info using npm#6.12.0
3 info using node#v10.16.3
4 verbose run-script [ 'prestart', 'start', 'poststart' ]
5 info lifecycle learny-frontend#0.1.0~prestart: learny-frontend#0.1.0
6 info lifecycle learny-frontend#0.1.0~start: learny-frontend#0.1.0
7 verbose lifecycle learny-frontend#0.1.0~start: unsafe-perm in lifecycle true
8 verbose lifecycle learny-frontend#0.1.0~start:
PATH: /usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp- bin:/Users/hassnianidrees/Desktop/projects/learny-
frontEnd/node_modules/.bin:/Library/Frameworks/Python.framework/Versions/3.7/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin:/Library/Apple/bin:/usr/local /share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Command s:/Library/Frameworks/Python.framework/Versions/3.7/bin
9 verbose lifecycle learny-frontend#0.1.0~start: CWD: /Users/hassnianidrees/Desktop/projects/learny-frontEnd
10 silly lifecycle learny-frontend#0.1.0~start: Args: [ '-c', 'react-scripts start' ]
11 silly lifecycle learny-frontend#0.1.0~start: Returned: code: 1 signal: null
12 info lifecycle learny-frontend#0.1.0~start: Failed to exec start script
13 verbose stack Error: learny-frontend#0.1.0 start: `react-scripts start`
13 verbose stack Exit status 1
13 verbose stack at EventEmitter.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:332:16)
13 verbose stack at EventEmitter.emit (events.js:198:13)
13 verbose stack at ChildProcess.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack at ChildProcess.emit (events.js:198:13)
13 verbose stack at maybeClose (internal/child_process.js:982:16)
13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)
14 verbose pkgid learny-frontend#0.1.0
15 verbose cwd /Users/hassnianidrees/Desktop/projects/learny-frontEnd
16 verbose Darwin 19.0.0
17 verbose argv "/usr/local/bin/node" "/usr/local/bin/npm" "start"
18 verbose node v10.16.3
19 verbose npm v6.12.0
20 error code ELIFECYCLE
21 error errno 1
22 error learny-frontend#0.1.0 start: `react-scripts start`
22 error Exit status 1
23 error Failed at the learny-frontend#0.1.0 start script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]
T'm trying to install this project and i'm getting this error i'm pretty sure that the project is ok bcz it worked when I did make the commit.

Try to use YARN package manger.
Yarn installations procedure - Link
then install the package using it

Node Script Throwing Strange code ELIFECYCLE errno 2

In an effort to remove gulp from my project, I'm refactoring all of my scripts into node scripts. This has been largely successful, however, in refactoring my JSHint scripts, I'm running into a peculiar (though largely benign) problem. My script in package.json is:
"jshint-script": "jshint --reporter=tasks/misc_tasks/jshint.js build/ --exclude build-/libs/"
This works absolutely fine when I type it directly into the command line. However, when I run npm run jshint-script, everything runs just fine, but then an error is blown.
npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! Rosetta#5.0.0 jshint-script:jshint --reporter=tasks/misc_tasks/reporter.js build-ts/ --exclude build/libs/
npm ERR! Exit status 2
the full log is below:
0 info it worked if it ends with ok
1 verbose cli [ '/usr/local/bin/node', '/usr/local/bin/npm', 'run', 'jshint' ]
2 info using npm#6.9.0
3 info using node#v10.16.0
4 verbose run-script [ 'prejshint', 'jshint', 'postjshint' ]
5 info lifecycle Project#5.0.0~prejshint: Project#5.0.0
6 info lifecycle Project#5.0.0~jshint: Project#5.0.0
7 verbose lifecycle Project#5.0.0~jshint: unsafe-perm in lifecycle true
8 verbose lifecycle Project#5.0.0~jshint: PATH: /usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/node-gyp-bin:/Users/user/Documents/Git/Project/node_modules/.bin:/Library/Frameworks/Python.framework/Versions/3.6/bin:/usr/local/opt/openssl/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/share/dotnet:~/.dotnet/tools:/Library/Frameworks/Mono.framework/Versions/Current/Commands:/Library/Frameworks/Python.framework/Versions/3.6/bin:/usr/local/opt/openssl/bin:/Users/user/npm/bin:/Users/user/npm/bin
9 verbose lifecycle Project#5.0.0~jshint: CWD: /Users/user/Documents/Git/Project
10 silly lifecycle Project#5.0.0~jshint: Args: [ '-c',
10 silly lifecycle 'jshint --reporter=tasks/misc_tasks/jshint.js build/ --exclude build/libs/' ]
11 silly lifecycle Project#5.0.0~jshint: Returned: code: 2 signal: null
12 info lifecycle Project#5.0.0~jshint: Failed to exec jshint script
13 verbose stack Error: Project#5.0.0 jshint:jshint --reporter=tasks/misc_tasks/jshint.js build/ --exclude build/libs/
13 verbose stack Exit status 2
13 verbose stack at EventEmitter.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/index.js:301:16)
13 verbose stack at EventEmitter.emit (events.js:198:13)
13 verbose stack at ChildProcess.<anonymous> (/usr/local/lib/node_modules/npm/node_modules/npm-lifecycle/lib/spawn.js:55:14)
13 verbose stack at ChildProcess.emit (events.js:198:13)
13 verbose stack at maybeClose (internal/child_process.js:982:16)
13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:259:5)
14 verbose pkgid Project#5.0.0
15 verbose cwd /Users/user/Documents/Git/Project
16 verbose Darwin 18.2.0
17 verbose argv "/usr/local/bin/node" "/usr/local/bin/npm" "run" "jshint"
18 verbose node v10.16.0
19 verbose npm v6.9.0
20 error code ELIFECYCLE
21 error errno 2
22 error Project#5.0.0 jshint:jshint --reporter=tasks/misc_tasks/jshint.js build/ --exclude build/libs/
22 error Exit status 2
23 error Failed at the Project#5.0.0 jshint script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 2, true ]

I cannot run my React JS app with npm from my terminal because the command spawn fails with error ENOENT

Disclaimer before reading: I am new to coding so I hope that I won't be judged too harshly. Anyway, this is what happens right after I run npm-start from my react application root directory:
Error: spawn cmd ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:232:19)
I tried resetting my path variables to point to npm on my windows 7 machine, and still no luck. I've additionally tried reinstalling npm in my react project root and re-configuring my react-scripts dev dependency in the package.json file. Additionally, I've tested this with yarn start, and it still does not work.
Below is a full error log from Users/MyName/AppData/Roaming/npm-cache/some-text-file-debug.log:
0 info it worked if it ends with ok
1 verbose cli [ 'C:\\Program Files\\nodejs\\node.exe',
1 verbose cli 'C:\\Users\\Mara\\AppData\\Roaming\\npm\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli 'start' ]
2 info using npm#6.5.0
3 info using node#v10.15.0
4 verbose run-script [ 'prestart', 'start', 'poststart' ]
5 info lifecycle app-one#0.1.0~prestart: app-one#0.1.0
6 info lifecycle app-one#0.1.0~start: app-one#0.1.0
7 verbose lifecycle app-one#0.1.0~start: unsafe-perm in lifecycle true
8 verbose lifecycle app-one#0.1.0~start: PATH: C:\Users\Mara\AppData\Roaming\npm\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;C:\Users\Mara\documents\myprograms\app-one\node_modules\.bin;C:\Users\Mara\bin;C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\local\bin;C:\Program Files\Git\usr\bin;C:\Program Files\Git\usr\bin;C:\Program Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Users\Mara\bin;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\ProgramData\Oracle\Java\javapath;C:\Program Files\Java\C;C:\Program Files\Git\Program Files\Java\jdk1.8.0_144\bin\C;C:\Program Files\Git\Program Files (x86)\Skype\Phone;C:\Program Files\Git\cmd;C:\Program Files\nodejs;C:\Program Files\MongoDB\Server\3.4\bin;C:\Program Files (x86)\Yarn\bin;C:\Program Files\Lenovo\Fingerprint Manager Pro;C:\Program Files\dotnet;C:\Program Files\MySQL\MySQL Server 8.0\bin;C:\php;C:\Program Files\Intel\WiFi\bin;C:\Program Files\Common Files\Intel\WirelessCommon;C:\Program Files\nodejs;C:\Users\Mara\AppData\Local\Programs\Python\Python37\Scripts;C:\Users\Mara\AppData\Local\Programs\Python\Python37;C:\Ruby25-x64\bin;C:\Program Files\Java\jdk1.8.0_144\bin;C:\Users\Mara\AppData\Local\atom\bin;C:\Users\Mara\Downloads\python-3.7.3.exe;C:\C;C:\Program Files\Git\Program Files\Heroku\bin;C:\Program Files\Microsoft VS Code\bin;C:\Users\Mara\AppData\Local\Yarn\bin;C:\Ruby\bin;C\php;C\Program Files\Intel\WiFi\bin;C:\Program Files\Common Files\Intel\WirelessCommon;C:\Users\Mara\AppData\Roaming\npm;C:\Users\Mara\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program Files\Git\usr\bin\vendor_perl;C:\Program Files\Git\usr\bin\core_perl
9 verbose lifecycle app-one#0.1.0~start: CWD: C:\Users\Mara\documents\myprograms\app-one
10 silly lifecycle app-one#0.1.0~start: Args: [ '/d /s /c', 'react-scripts start' ]
11 silly lifecycle app-one#0.1.0~start: Returned: code: 1 signal: null
12 info lifecycle app-one#0.1.0~start: Failed to exec start script
13 verbose stack Error: app-one#0.1.0 start: `react-scripts start`
13 verbose stack Exit status 1
13 verbose stack at EventEmitter.<anonymous> (C:\Users\Mara\AppData\Roaming\npm\node_modules\npm\node_modules\npm-lifecycle\index.js:301:16)
13 verbose stack at EventEmitter.emit (events.js:182:13)
13 verbose stack at ChildProcess.<anonymous> (C:\Users\Mara\AppData\Roaming\npm\node_modules\npm\node_modules\npm-lifecycle\lib\spawn.js:55:14)
13 verbose stack at ChildProcess.emit (events.js:182:13)
13 verbose stack at maybeClose (internal/child_process.js:962:16)
13 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:251:5)
14 verbose pkgid app-one#0.1.0
15 verbose cwd C:\Users\Mara\documents\myprograms\app-one
16 verbose Windows_NT 6.1.7601
17 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\Mara\\AppData\\Roaming\\npm\\node_modules\\npm\\bin\\npm-cli.js" "start"
18 verbose node v10.15.0
19 verbose npm v6.5.0
20 error code ELIFECYCLE
21 error errno 1
22 error app-one#0.1.0 start: `react-scripts start`
22 error Exit status 1
23 error Failed at the app-one#0.1.0 start script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]```

It seems the task is trying to call require('child_process'). spawn directly since Windows requires a file extension in order for Node.js to spawn the binary. In this case, you can refer to npm-execspawn for more information.
Also, refer to this post

Resolve 'eslint' error inside index.js - Angular 5

I'm getting an eslint error when I attempt to deploy my Angular functions. I've determined that the issue is contained within a code snippet found in this article: https://medium.com/#markgoho/create-a-contact-form-in-angular-using-cloud-functions-for-firebase-5e390bdf5600
Here's the snippet I grabbed from the article and placed into my index.js file:
exports.sendContactMessage = functions.database.ref('/messages/{pushKey}').onWrite(event => {
const snapshot = event.data;
// Only send email for new messages.
if (snapshot.previous.val() || !snapshot.val().name) {
return;
}
const val = snapshot.val();
const mailOptions = {
to: 'test#example.com',
subject: `Information Request from ${val.name}`,
html: val.html
};
return mailTransport.sendMail(mailOptions).then(() => {
return console.log('Mail sent to: test#example.com')
});
});
Here's the full error output:
0 info it worked if it ends with ok
1 verbose cli [ '/usr/local/bin/node',
1 verbose cli '/usr/local/bin/npm',
1 verbose cli '--prefix',
1 verbose cli '/Users/kwlester/Documents/JurassicRevenge/commonwealthlinen/functions',
1 verbose cli 'run',
1 verbose cli 'lint' ]
2 info using npm#4.5.0
3 info using node#v6.10.2
4 verbose run-script [ 'prelint', 'lint', 'postlint' ]
5 info lifecycle functions#~prelint: functions#
6 silly lifecycle functions#~prelint: no script for prelint, continuing
7 info lifecycle functions#~lint: functions#
8 verbose lifecycle functions#~lint: unsafe-perm in lifecycle true
9 verbose lifecycle functions#~lint: PATH: /usr/local/lib/node_modules/npm/bin/node-gyp-bin:/Users/kwlester/Documents/JurassicRevenge/commonwealthlinen/functions/node_modules/.bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
10 verbose lifecycle functions#~lint: CWD: /Users/kwlester/Documents/JurassicRevenge/commonwealthlinen/functions
11 silly lifecycle functions#~lint: Args: [ '-c', 'eslint .' ]
12 silly lifecycle functions#~lint: Returned: code: 1 signal: null
13 info lifecycle functions#~lint: Failed to exec lint script
14 verbose stack Error: functions# lint: `eslint .`
14 verbose stack Exit status 1
14 verbose stack at EventEmitter.<anonymous> (/usr/local/lib/node_modules/npm/lib/utils/lifecycle.js:279:16)
14 verbose stack at emitTwo (events.js:106:13)
14 verbose stack at EventEmitter.emit (events.js:191:7)
14 verbose stack at ChildProcess.<anonymous> (/usr/local/lib/node_modules/npm/lib/utils/spawn.js:40:14)
14 verbose stack at emitTwo (events.js:106:13)
14 verbose stack at ChildProcess.emit (events.js:191:7)
14 verbose stack at maybeClose (internal/child_process.js:886:16)
14 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:226:5)
15 verbose pkgid functions#
16 verbose cwd /Users/kwlester/Documents/JurassicRevenge/commonwealthlinen
17 verbose Darwin 17.4.0
18 verbose argv "/usr/local/bin/node" "/usr/local/bin/npm" "--prefix" "/Users/kwlester/Documents/JurassicRevenge/commonwealthlinen/functions" "run" "lint"
19 verbose node v6.10.2
20 verbose npm v4.5.0
21 error code ELIFECYCLE
22 error errno 1
23 error functions# lint: `eslint .`
23 error Exit status 1
24 error Failed at the functions# lint script 'eslint .'.
24 error Make sure you have the latest version of node.js and npm installed.
24 error If you do, this is most likely a problem with the functions package,
24 error not with npm itself.
24 error Tell the author that this fails on your system:
24 error eslint .
24 error You can get information on how to open an issue for this project with:
24 error npm bugs functions
24 error Or if that isn't available, you can get their info via:
24 error npm owner ls functions
24 error There is likely additional logging output above.
25 verbose exit [ 1, true ]
When I remove the 3rd party snippet, the error goes away.
I have very limited Javascript knowledge, so I'm having trouble finding where the issue lies. How do I solve this?

The log suggests you verify your running the latest node and npm. If you are on windows the node install will also install the latest npm. I would suggest giving that a go first.
Log suggests here:
Make sure you have the latest version of node.js and npm installed.
Looks like it mentions you are using node v6.10.2 and the latest is currently v9.5.0

TypeError: React.renderToStaticMarkup is not a function

I am following this tutorial "Building SVG Icons with React"
http://jxnblk.com/react-icons/
I am getting stuck when i am running the command "npm run build"
This is the npm-debug.log
0 info it worked if it ends with ok
1 verbose cli [ '/Users/villat/.nvm/versions/node/v5.0.0/bin/node',
1 verbose cli '/Users/villat/.nvm/versions/node/v5.0.0/bin/npm',
1 verbose cli 'run',
1 verbose cli 'build' ]
2 info using npm#3.3.6
3 info using node#v5.0.0
4 verbose run-script [ 'prebuild', 'build', 'postbuild' ]
5 info lifecycle react-icons#1.0.0~prebuild: react-icons#1.0.0
6 silly lifecycle react-icons#1.0.0~prebuild: no script for prebuild, continuing
7 info lifecycle react-icons#1.0.0~build: react-icons#1.0.0
8 verbose lifecycle react-icons#1.0.0~build: unsafe-perm in lifecycle true
9 verbose lifecycle react-icons#1.0.0~build: PATH: /Users/villat/.nvm/versions/node/v5.0.0/lib/node_modules/npm/bin/node-gyp-bin:/Users/villat/Downloads/Projects/react-icons/node_modules/.bin:/Users/villat/.nvm/versions/node/v5.0.0/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin
10 verbose lifecycle react-icons#1.0.0~build: CWD: /Users/villat/Downloads/Projects/react-icons
11 silly lifecycle react-icons#1.0.0~build: Args: [ '-c', 'node build' ]
12 silly lifecycle react-icons#1.0.0~build: Returned: code: 1 signal: null
13 info lifecycle react-icons#1.0.0~build: Failed to exec build script
14 verbose stack Error: react-icons#1.0.0 build: `node build`
14 verbose stack Exit status 1
14 verbose stack at EventEmitter.<anonymous> (/Users/villat/.nvm/versions/node/v5.0.0/lib/node_modules/npm/lib/utils/lifecycle.js:233:16)
14 verbose stack at emitTwo (events.js:87:13)
14 verbose stack at EventEmitter.emit (events.js:172:7)
14 verbose stack at ChildProcess.<anonymous> (/Users/villat/.nvm/versions/node/v5.0.0/lib/node_modules/npm/lib/utils/spawn.js:24:14)
14 verbose stack at emitTwo (events.js:87:13)
14 verbose stack at ChildProcess.emit (events.js:172:7)
14 verbose stack at maybeClose (internal/child_process.js:818:16)
14 verbose stack at Process.ChildProcess._handle.onexit (internal/child_process.js:211:5)
15 verbose pkgid react-icons#1.0.0
16 verbose cwd /Users/villat/Downloads/Projects/react-icons
17 error Darwin 15.4.0
18 error argv "/Users/villat/.nvm/versions/node/v5.0.0/bin/node" "/Users/villat/.nvm/versions/node/v5.0.0/bin/npm" "run" "build"
19 error node v5.0.0
20 error npm v3.3.6
21 error code ELIFECYCLE
22 error react-icons#1.0.0 build: `node build`
22 error Exit status 1
23 error Failed at the react-icons#1.0.0 build script 'node build'.
23 error This is most likely a problem with the react-icons package,
23 error not with npm itself.
23 error Tell the author that this fails on your system:
23 error node build
23 error You can get their info via:
23 error npm owner ls react-icons
23 error There is likely additional logging output above.
24 verbose exit [ 1, true ]
In attached my terminal screenshot where it is complaining about React.renderToStaticMarkup
I have done a bit of research and i have not found any relevant solution for me
I am using nvm to manage the node versions
My node -v version is 5.0.0

renderToStaticMarkup has moved to react-dom/server.
http://facebook.github.io/react/docs/top-level-api.html#reactdomserver.rendertostaticmarkup
You need to install react-dom.
npm install react-dom
And use it.
var ReactDOMServer = require('react-dom/server');
ReactDOMServer.renderToStaticMarkup(<div />);