カルマテストパラメータ--watch = falseが機能しない

Jasmineテストの実行に問題があります。実行した場合：

ng test --browsers=ChromeHeadless --code-coverage

テストは機能しています。

しかし、実行すると：

ng test --watch=false --browsers=ChromeHeadless --code-coverage

それは機能せず、次のエラーが発生します。

$ npm run test:noWatch

> [email protected] test:noWatch E:\Jenkins\home\workspace\MSF-Test\monatlicheschueler\client
> ng test --watch=false --browsers=ChromeHeadless --code-coverage

14 02 2019 15:28:47.979:INFO [karma]: Karma v3.0.0 server started at http://0.0.0.0:9876/
14 02 2019 15:28:47.995:INFO [launcher]: Launching browser ChromeHeadless with unlimited concurrency
14 02 2019 15:28:48.027:INFO [launcher]: Starting browser ChromeHeadless
14 02 2019 15:29:09.146:INFO [HeadlessChrome 0.0.0 (Windows 8.1 0.0.0)]: Connected on socket 5cSIZU4-5deTyQyKAAAA with id 46249460
14 02 2019 15:29:39.153:WARN [HeadlessChrome 0.0.0 (Windows 8.1 0.0.0)]: Disconnected (1 times), because no message in 30000 ms.
HeadlessChrome 0.0.0 (Windows 8.1 0.0.0) ERROR
  Disconnected, because no message in 30000 ms.

HeadlessChrome 0.0.0 (Windows 8.1 0.0.0) ERROR
  Disconnected, because no message in 30000 ms.

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] test:noWatch: `ng test --watch=false --browsers=ChromeHeadless --code-coverage`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] test:noWatch 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:  

このバージョンを使用しています：

Angular CLI: 7.3.1
Node: 10.14.1
OS: win32 x64
Angular: 7.1.4
... animations, common, compiler, compiler-cli, core, forms
... http, language-service, platform-browser
... platform-browser-dynamic, router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.12.4
@angular-devkit/build-angular     0.12.4
@angular-devkit/build-optimizer   0.12.4
@angular-devkit/build-webpack     0.12.4
@angular-devkit/core              7.2.4
@angular-devkit/schematics        7.3.1
@angular/cdk                      7.1.1
@angular/cli                      7.3.1
@angular/material                 7.3.2
@ngtools/webpack                  7.2.4
@schematics/angular               7.3.1
@schematics/update                0.13.1
rxjs                              6.3.3
typescript                        3.1.6
webpack                           4.28.4

これは私がログで見つけることができるものです：

0 info it worked if it ends with ok
1 verbose cli [ 'C:\\Program Files\\nodejs\\node.exe',
1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'run',
1 verbose cli   'test:noWatch' ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [ 'pretest:noWatch', 'test:noWatch', 'posttest:noWatch' ]
5 info lifecycle [email protected]~pretest:noWatch: [email protected]
6 info lifecycle [email protected]~test:noWatch: [email protected]
7 verbose lifecycle [email protected]~test:noWatch: unsafe-perm in lifecycle true
8 verbose lifecycle [email protected]~test:noWatch: PATH: C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;E:\Jenkins\home\workspace\MSF-Test\monatlicheschueler\client\node_modules\.bin;C:\Users\admin2\bin;E:\Program Files\Git\mingw64\bin;E:\Program Files\Git\usr\local\bin;E:\Program Files\Git\usr\bin;E:\Program Files\Git\usr\bin;E:\Program Files\Git\mingw64\bin;E:\Program Files\Git\usr\bin;C:\Users\admin2\bin;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0;E:\Program Files\Git\cmd;C:\Program Files\nodejs;E:\Program Files\7-Zip;C:\Windows\System32;E:\Program Files\maven\apache-maven-3.5.4\bin;E:\Program Files\commons-daemon;E:\Program Files\Git\usr\bin;E:\Program Files\Git\usr\bin;E:\Program Files\Git\mingw64\bin;E:\Program Files\Java\jdk1.8.0_171\bin;C:\Users\admin2\AppData\Roaming\npm;E:\Program Files\Git\usr\bin\vendor_perl;E:\Program Files\Git\usr\bin\core_perl
9 verbose lifecycle [email protected]~test:noWatch: CWD: E:\Jenkins\home\workspace\MSF-Test\monatlicheschueler\client
10 silly lifecycle [email protected]~test:noWatch: Args: [ '/d /s /c',
10 silly lifecycle   'ng test --watch=false --browsers=ChromeHeadless --code-coverage' ]
11 silly lifecycle [email protected]~test:noWatch: Returned: code: 1  signal: null
12 info lifecycle [email protected]~test:noWatch: Failed to exec test:noWatch script
13 verbose stack Error: [email protected] test:noWatch: `ng test --watch=false --browsers=ChromeHeadless --code-coverage`
13 verbose stack Exit status 1
13 verbose stack     at EventEmitter.<anonymous> (C:\Program Files\nodejs\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:\Program Files\nodejs\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 [email protected]
15 verbose cwd E:\Jenkins\home\workspace\MSF-Test\monatlicheschueler\client
16 verbose Windows_NT 6.3.9600
17 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "test:noWatch"
18 verbose node v10.14.1
19 verbose npm  v6.4.1
20 error code ELIFECYCLE
21 error errno 1
22 error [email protected] test:noWatch: `ng test --watch=false --browsers=ChromeHeadless --code-coverage`
22 error Exit status 1
23 error Failed at the [email protected] test:noWatch script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

誰かが何が問題になるのか知っていますか？