Error: EMFILE: too many open files

[jwhite1802]

Please provide us with the following information:

1. OS? Windows 7, 8 or 10. Linux (which distribution). Mac OSX (Yosemite? El Capitan?)
   Windows 7
2. 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
3. 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
4. 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)

1. 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.

[artigat1]

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)

[alexkates]

+1 Having the same issue in the same environment.

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

[filipesilva]

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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