Error: EMFILE: too many open files

Please provide us with the following information:

OS? Windows 7, 8 or 10. Linux (which distribution). Mac OSX (Yosemite? El Capitan?)
Windows 7
Versions. Please run ng --version. If there's nothing outputted, please run
in a Terminal: node --version and paste the result here:
angular-cli: 1.0.0-beta.10
node: 5.10.1
os: win32 x64
Repro steps. Was this an app that wasn't created using the CLI? What change did you
do on your code? etc.
This is an app that was created using the CLI
The log given by the failure. Normally this include a stack trace and some
more information.

The Broccoli Plugin: [BroccoliTypeScriptCompiler] failed with:
Error: EMFILE: too many open files, open 'D:\workspace\ng-test\node_modules@angular\core\src\change_detection\differs\keyvalue_differs.d.ts'
at Error (native)
at Object.fs.openSync (fs.js:584:18)
at Object.fs.readFileSync (fs.js:431:33)
at CustomLanguageServiceHost.getScriptSnapshot (D:\workspace\ng-test\node_modules\angular-cli\lib\broccoli\broccoli-typescript.js:418:44)
at HostCache.createEntry (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:48033:44)
at HostCache.getOrCreateEntry (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:48056:25)
at Object.getOrCreateSourceFile as getSourceFile
at findSourceFile (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40307:29)
at processImportedModules (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40388:44)
at findSourceFile (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40352:17)
at processImportedModules (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40388:44)
at findSourceFile (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40352:17)
at processImportedModules (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40388:44)
at findSourceFile (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40352:17)
at processImportedModules (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40388:44)
at findSourceFile (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40352:17)
at processImportedModules (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40388:44)
at findSourceFile (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40352:17)
at processImportedModules (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40388:44)
at findSourceFile (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40352:17)
at processSourceFile (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40251:27)
at processRootFile (D:\workspace\ng-test\node_modules\angular-cli\node_modules\typescript\lib\typescript.js:40161:13)

The broccoli plugin was instantiated at:
at BroccoliTypeScriptCompiler.Plugin (D:\workspace\ng-test\node_modules\angular-cli\node_modules\broccoli-plugin\index.js:10:31)
at BroccoliTypeScriptCompiler.CachingWriter as constructor
at BroccoliTypeScriptCompiler (D:\workspace\ng-test\node_modules\angular-cli\lib\broccoli\broccoli-typescript.js:26:49)
at Angular2App._getTsTree (D:\workspace\ng-test\node_modules\angular-cli\lib\broccoli\angular2-app.js:331:18)
at Angular2App._buildTree (D:\workspace\ng-test\node_modules\angular-cli\lib\broccoli\angular2-app.js:124:23)
at new Angular2App (D:\workspace\ng-test\node_modules\angular-cli\lib\broccoli\angular2-app.js:53:23)
at module.exports (D:\workspace\ng-test\angular-cli-build.js:10:10) at Class.module.exports.Task.extend.setupBroccoliBuilder (D:\workspace\ng-test\node_modules\angular-cli\node_modules\angular-cli\lib\models\builder.js:55:19)
at Class.module.exports.Task.extend.init (D:\workspace\ng-test\node_modules\angular-cli\node_modules\angular-cli\lib\models\builder.js:89:10) at new Class (D:\workspace\ng-test\node_modules\angular-cli\node_modules\core-object\core-object.js:18:12)
at Class.module.exports.Task.extend.run (D:\workspace\ng-test\node_modules\angular-cli\node_modules\angular-cli\lib\tasks\build-watch.js:17:16) at D:\workspace\ng-test\node_modules\angular-cli\addon\ng2\commands\test.js:69:46
at lib$rsvp$$internal$$tryCatch (D:\workspace\ng-test\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1036:16)
at lib$rsvp$$internal$$invokeCallback (D:\workspace\ng-test\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1048:17)
at lib$rsvp$$internal$$publish (D:\workspace\ng-test\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1019:11)
at lib$rsvp$asap$$flush (D:\workspace\ng-test\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1198:9)

Mention any other details that might be useful.
I get this error when runing the ng test command in terminals running as administrator and normal privileges.

Thanks! We'll be in touch soon.

I've had this. I just created a new project with angular-cli:

angular-cli: 1.0.0-beta.10
node: 5.0.0
os: win32 x64

After creating the project and making no changes, I did ng test and got the following error:

Built project successfully. Stored in "dist/".
\ BuildingThe Broccoli Plugin: [BroccoliTypeScriptCompiler] failed with:
Error: EMFILE: too many open files, open 'C:\git\unit-tester\tmp\broccoli_type_script_compiler-input_base_path-ml3sdsIv.tmp\0\src\tsconfig.json'
    at Error (native)
    at Object.fs.openSync (fs.js:584:18)
    at Object.fs.readFileSync (fs.js:431:33)
    at BroccoliTypeScriptCompiler._loadTsConfig (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\broccoli-typescript.js:128:34)
    at BroccoliTypeScriptCompiler._createServiceHost (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\broccoli-typescript.js:163:25)
    at BroccoliTypeScriptCompiler.build (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\broccoli-typescript.js:41:12)
    at C:\git\unit-tester\node_modules\angular-cli\node_modules\broccoli-caching-writer\index.js:152:21
    at lib$rsvp$$internal$$tryCatch (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1036:16)
    at lib$rsvp$$internal$$invokeCallback (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1048:17)
    at lib$rsvp$$internal$$publish (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1019:11)
    at lib$rsvp$asap$$flush (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1198:9)
    at doNTCallback0 (node.js:428:9)
    at process._tickCallback (node.js:357:13)

The broccoli plugin was instantiated at:
    at BroccoliTypeScriptCompiler.Plugin (C:\git\unit-tester\node_modules\angular-cli\node_modules\broccoli-plugin\index.js:10:31)
    at BroccoliTypeScriptCompiler.CachingWriter [as constructor] (C:\git\unit-tester\node_modules\angular-cli\node_modules\broccoli-caching-writer\index.js:21:10)
    at BroccoliTypeScriptCompiler (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\broccoli-typescript.js:26:49)
    at Angular2App._getTsTree (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\angular2-app.js:331:18)
    at Angular2App._buildTree (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\angular2-app.js:124:23)
    at new Angular2App (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\angular2-app.js:53:23)
    at module.exports (C:\git\unit-tester\angular-cli-build.js:10:10)
    at Class.module.exports.Task.extend.setupBroccoliBuilder (C:\git\unit-tester\node_modules\angular-cli\node_modules\angular-cli\lib\models\builder.js:55:19)
    at Class.module.exports.Task.extend.init (C:\git\unit-tester\node_modules\angular-cli\node_modules\angular-cli\lib\models\builder.js:89:10)
    at new Class (C:\git\unit-tester\node_modules\angular-cli\node_modules\core-object\core-object.js:18:12)
    at Class.module.exports.Task.extend.run (C:\git\unit-tester\node_modules\angular-cli\node_modules\angular-cli\lib\tasks\build-watch.js:17:16)
    at C:\git\unit-tester\node_modules\angular-cli\addon\ng2\commands\test.js:69:46
    at lib$rsvp$$internal$$tryCatch (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1036:16)
    at lib$rsvp$$internal$$invokeCallback (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1048:17)
    at lib$rsvp$$internal$$publish (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1019:11)
    at lib$rsvp$asap$$flush (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1198:9)


The Broccoli Plugin: [BroccoliTypeScriptCompiler] failed with:
Error: EMFILE: too many open files, open 'C:\git\unit-tester\tmp\broccoli_type_script_compiler-input_base_path-ml3sdsIv.tmp\0\src\tsconfig.json'
    at Error (native)
    at Object.fs.openSync (fs.js:584:18)
    at Object.fs.readFileSync (fs.js:431:33)
    at BroccoliTypeScriptCompiler._loadTsConfig (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\broccoli-typescript.js:128:34)
    at BroccoliTypeScriptCompiler._createServiceHost (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\broccoli-typescript.js:163:25)
    at BroccoliTypeScriptCompiler.build (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\broccoli-typescript.js:41:12)
    at C:\git\unit-tester\node_modules\angular-cli\node_modules\broccoli-caching-writer\index.js:152:21
    at lib$rsvp$$internal$$tryCatch (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1036:16)
    at lib$rsvp$$internal$$invokeCallback (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1048:17)
    at lib$rsvp$$internal$$publish (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1019:11)
    at lib$rsvp$asap$$flush (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1198:9)
    at doNTCallback0 (node.js:428:9)
    at process._tickCallback (node.js:357:13)

The broccoli plugin was instantiated at:
    at BroccoliTypeScriptCompiler.Plugin (C:\git\unit-tester\node_modules\angular-cli\node_modules\broccoli-plugin\index.js:10:31)
    at BroccoliTypeScriptCompiler.CachingWriter [as constructor] (C:\git\unit-tester\node_modules\angular-cli\node_modules\broccoli-caching-writer\index.js:21:10)
    at BroccoliTypeScriptCompiler (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\broccoli-typescript.js:26:49)
    at Angular2App._getTsTree (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\angular2-app.js:331:18)
    at Angular2App._buildTree (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\angular2-app.js:124:23)
    at new Angular2App (C:\git\unit-tester\node_modules\angular-cli\lib\broccoli\angular2-app.js:53:23)
    at module.exports (C:\git\unit-tester\angular-cli-build.js:10:10)
    at Class.module.exports.Task.extend.setupBroccoliBuilder (C:\git\unit-tester\node_modules\angular-cli\node_modules\angular-cli\lib\models\builder.js:55:19)
    at Class.module.exports.Task.extend.init (C:\git\unit-tester\node_modules\angular-cli\node_modules\angular-cli\lib\models\builder.js:89:10)
    at new Class (C:\git\unit-tester\node_modules\angular-cli\node_modules\core-object\core-object.js:18:12)
    at Class.module.exports.Task.extend.run (C:\git\unit-tester\node_modules\angular-cli\node_modules\angular-cli\lib\tasks\build-watch.js:17:16)
    at C:\git\unit-tester\node_modules\angular-cli\addon\ng2\commands\test.js:69:46
    at lib$rsvp$$internal$$tryCatch (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1036:16)
    at lib$rsvp$$internal$$invokeCallback (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1048:17)
    at lib$rsvp$$internal$$publish (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1019:11)
    at lib$rsvp$asap$$flush (C:\git\unit-tester\node_modules\angular-cli\node_modules\rsvp\dist\rsvp.js:1198:9)

+1 Having the same issue in the same environment.

A workaround, though not ideal:
ng build && ng test --build=false

Dupe of #977, made obsolete by #1455. You can try the webpack preview by following these instructions: https://github.com/angular/angular-cli#webpack-preview-release-update

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Error: EMFILE: too many open files #1700

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Error: EMFILE: too many open files #1700

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artigat1 commented on Aug 22, 2016

alexkates commented on Aug 22, 2016

filipesilva commented on Aug 23, 2016

angular-automatic-lock-bot commented on Sep 6, 2019

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