Emitted error event on childprocess instance at

events.js:187 throw er; // Unhandled ‘error’ event ^ #19178

events.js:187
throw er; // Unhandled ‘error’ event
^

Error: spawn cmd ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:264:19)
at onErrorNT (internal/child_process.js:456:16)
at processTicksAndRejections (internal/process/task_queues.js:80:21)
Emitted ‘error’ event on ChildProcess instance at:
at Process.ChildProcess._handle.onexit (internal/child_process.js:270:12)
at onErrorNT (internal/child_process.js:456:16)
at processTicksAndRejections (internal/process/task_queues.js:80:21) <
errno: -4058,
code: ‘ENOENT’,
syscall: ‘spawn cmd’,
path: ‘cmd’,
spawnargs: [ ‘/c’, ‘start’, ‘»»‘, ‘/b’, ‘http://localhost:4200/’ ]
>.

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solution please i also getting same error

I am getting below error when I run: ng serve -o
events.js:187
throw er; // Unhandled ‘error’ event
^

Error: spawn cmd ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:264:19)
at onErrorNT (internal/child_process.js:456:16)
at processTicksAndRejections (internal/process/task_queues.js:80:21)
Emitted ‘error’ event on ChildProcess instance at:
at Process.ChildProcess._handle.onexit (internal/child_process.js:270:12)
at onErrorNT (internal/child_process.js:456:16)
at processTicksAndRejections (internal/process/task_queues.js:80:21) <
errno: ‘ENOENT’,
code: ‘ENOENT’,
syscall: ‘spawn cmd’,
path: ‘cmd’,
spawnargs: [ ‘/c’, ‘start’, ‘»»‘, ‘/b’, ‘http://localhost:4200/’ ]
>

Please look over the path to system variables for npm node_modules
or delete the node_modules in the project again you can run the command : npm install
npm start

Downgrading the react-script version from 3.0.1 to 2.1.8 worked for me. npm install react-scripts@2.1.8 npm install npm start

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Источник

write EPIPE when using ChildProcessWorker.js #10144

🐛 Bug Report

We run our tests in CircleCI using maxWorker=4

For some tests ChildProcessWorker.send fails and break all the tests execution

To Reproduce

Try to run many tests at the same time

Expected behavior

It should not break

Link to repl or repo (highly encouraged)

our internal repo is similar to this one https://github.com/entria/entria-fullstack/tree/master/packages/server
We use a mongodb memory server to run tests.

envinfo

it can be related to #8507
not sure if this is node version specific

The text was updated successfully, but these errors were encountered:

Also encountering this after upgrading from node 10 to 12, and upgrading from jest 23 to 26.

This has been happening to me as well randomly but as of today, it is constant. Probable cause is adding more tests. No Node or Jest updates occurred.

I met a similar issue like this when I ran jest —coverage

Updated:
I have 64G memory, even if there is some memory leak, it should not crash the Jest itself. And it is very hard for us to «find» the location where memory leaks when our project is very big. It will be much helpful if the Jest could help us to wrap the issue, ignore the crash case or mark the case with failure, and run the left.

os: win10 LTSC 2019 (updated to latest)
node: 10.19.0
jest: 26.0.1 ( and tried 25.5.4)
yarn: 1.22.4

I met a similar issue also when running jest —coverage, it happens randomly
os: win10 version 1909
node: 12.18.0
jest: 26.0.1
npm: 6.14.4
`
Snapshot Summary
ÔÇ║ 1 snapshot failed from 1 test suite. Inspect your code changes or re-run jest with -u to update them.

Test Suites: 1 failed, 16 passed, 17 total
Tests: 1 failed, 71 passed, 72 total
Snapshots: 1 failed, 9 passed, 10 total
Time: 23.033 s
Ran all test suites.

Источник

Создал приложение — create-react-app app. Запустил — npm start.
Ошибка:

events.js:291
          throw er; // Unhandled 'error' event
          ^
    
    Error: spawn cmd ENOENT
        at Process.ChildProcess._handle.onexit (internal/child_process.js:268:19)
        at onErrorNT (internal/child_process.js:468:16)
        at processTicksAndRejections (internal/process/task_queues.js:80:21)     
    Emitted 'error' event on ChildProcess instance at:
        at Process.ChildProcess._handle.onexit (internal/child_process.js:274:12)
        at onErrorNT (internal/child_process.js:468:16)
        at processTicksAndRejections (internal/process/task_queues.js:80:21) {
      errno: -4058,
      code: 'ENOENT',
      syscall: 'spawn cmd',
      path: 'cmd',
      spawnargs: [ '/s', '/c', 'start', '""', '/b', '"http://localhost:3000/"' ]
    }
    npm ERR! code ELIFECYCLE
    npm ERR! errno 1
    npm ERR! todo-list@0.1.0 start: `react-scripts start`
    npm ERR! Exit status 1
    npm ERR!
    npm ERR! Failed at the todo-list@0.1.0 start 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!     C:UsersАлексAppDataRoamingnpm-cache_logs2020-08-13T12_14_12_199Z-debug.log

{
«name»: «vk-apps-currency»,
«version»: «1.0.0»,
«description»: «»,
«homepage»: «https://(secret).github.io/vk-apps-currency/»,
«main»: «index.js»,
«scripts»: {
«start»: «cross-env PORT=10888 react-scripts start»,
«build»: «react-scripts build»,
«predeploy»: «npm run build»,
«deploy»: «gh-pages -d build»
},
«keywords»: [],
«author»: «»,
«license»: «MIT»,
«devDependencies»: {
«cross-env»: «^5.2.1»,
«gh-pages»: «^2.1.1»,
«react-hot-loader»: «^4.12.18»,
«react-scripts»: «^3.3.0»
},
«dependencies»: {
«@material-ui/core»: «^4.5.1»,
«@vkontakte/icons»: «^1.13.0»,
«@vkontakte/vk-connect»: «^1.7.1»,
«@vkontakte/vk-mini-apps-api»: «^0.1.0»,
«@vkontakte/vk-miniapps-deploy»: «0.0.10»,
«@vkontakte/vkui»: «^2.34.1»,
«@vkontakte/vkui-connect»: «^1.5.4»,
«@vkontakte/vkui-connect-mock»: «^1.0.62»,
«babel-eslint»: «^10.0.3»,
«chalk»: «^2.4.2»,
«core-js»: «^3.6.1»,
«prop-types»: «^15.7.2»,
«react»: «^16.12.0»,
«react-dom»: «^16.12.0»
},
«browserslist»: {
«production»: [
«>0.2%»,
«not dead»,
«not op_mini all»
],
«development»: [
«last 1 chrome version»,
«last 1 firefox version»,
«last 1 safari version»
]
}
}

!!!!!!!!!!!!!ERROR!!!!!!!!!!!!!!!!
events.js:187
throw er; // Unhandled ‘error’ event
^

Error: spawn git ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:264:19)
at onErrorNT (internal/child_process.js:456:16)
at processTicksAndRejections (internal/process/task_queues.js:80:21)
Emitted ‘error’ event on ChildProcess instance at:
at Process.ChildProcess._handle.onexit (internal/child_process.js:270:12)
at onErrorNT (internal/child_process.js:456:16)
at processTicksAndRejections (internal/process/task_queues.js:80:21) {
errno: ‘ENOENT’,
code: ‘ENOENT’,
syscall: ‘spawn git’,
path: ‘git’,
spawnargs: [ ‘config’, ‘user.name’ ]
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! vk-apps-currency@2.1.8 deploy: gh-pages -d build
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the vk-apps-currency@2.1.8 deploy 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! C:UsersDalentAppDataRoamingnpm-cache_logs2019-12-26T20_31_43_043Z-debug.log

I’ve tried doing a full reset, reinstalled node, pretty much anything I’ve seen, and it still doesn’t work. It’s not working with create-react-app either, what is this error even for? I’m getting no info from the error message.

S:NODEProjectsa>npm start

> a@1.0.0 start S:NODEProjectsa
> webpack-dev-server --open

i ｢wds｣: Project is running at http://localhost:8080/
i ｢wds｣: webpack output is served from /
i ｢wds｣: Content not from webpack is served from S:NODEProjectsa
events.js:187
      throw er; // Unhandled 'error' event
      ^

Error: spawn cmd ENOENT
    at Process.ChildProcess._handle.onexit (internal/child_process.js:264:19)
    at onErrorNT (internal/child_process.js:456:16)
    at processTicksAndRejections (internal/process/task_queues.js:80:21)
Emitted 'error' event on ChildProcess instance at:
    at Process.ChildProcess._handle.onexit (internal/child_process.js:270:12)
    at onErrorNT (internal/child_process.js:456:16)
    at processTicksAndRejections (internal/process/task_queues.js:80:21) {
  errno: 'ENOENT',
  code: 'ENOENT',
  syscall: 'spawn cmd',
  path: 'cmd',
  spawnargs: [ '/c', 'start', '""', '/b', 'http://localhost:8080/' ]
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! a@1.0.0 start: `webpack-dev-server --open`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the a@1.0.0 start 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!     C:UsersnichoAppDataRoamingnpm-cache_logs2019-10-07T00_15_13_635Z-debug.log

Thanks so much, I appreciate it!

Hi ,
D:Oracle JET APPJET_Web_Application>ojet serve
Warning: Command is missing platform. Default to web.
Build: true
BuildType: dev
Destination: undefined
Destination target: undefined
Livereload: true
Livereload port: 35729
Platform: web
Port: 8000
Theme: redwood
Theme platform: web
Theme version: 10.1.1
Building app.
Cleaning staging path.
Running before_build hook.
Copy files to staging directory.
Copy finished.
Copy library files to staging directory.
Copy finished.
Copy reference components to staging directory.
Copy finished.
Copy local web components
Copy local web components skipped
Optimizing svg into SVG sprites.
Svg optimization task finished.
Compiling sass…
Sass compile finished.
Task index.html cdn bundle injection finished.
Running theme injection task.
Task index.html theme path injection finished.
Running theme copy task.
Theme copy task finished.
Running injection tasks.
Task main.js paths injection finished.
runAllComponentHooks
Running after_build hook.
Running before_serve hook.
Starting web server.
Connecting to http://localhost:8000
Starting watcher.
Running after_serve hook.
Server ready: http://localhost:8000
Listening on port 35729.
events.js:292
throw er; // Unhandled ‘error’ event
^

Error: spawn cmd ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:269:19)
at onErrorNT (internal/child_process.js:465:16)
at processTicksAndRejections (internal/process/task_queues.js:80:21)
Emitted ‘error’ event on ChildProcess instance at:
at Process.ChildProcess._handle.onexit (internal/child_process.js:275:12)
at onErrorNT (internal/child_process.js:465:16)
at processTicksAndRejections (internal/process/task_queues.js:80:21) {
errno: -4058,
code: ‘ENOENT’,
syscall: ‘spawn cmd’,
path: ‘cmd’,
spawnargs: [ ‘/c’, ‘start’, ‘»»‘, ‘/b’, ‘http://localhost:8000’ ]
}

please help me on the error.