"npm run build -- --prod" error on Visual Studio 2017 .NET Core 2.1 Angular

Question

I need an help, i've made a project on Angular based with .Net Core 2.1. So when i try to publish VS return me this error:

So the error is:

So, i've followed this solution: The command "npm run build -- --prod" exited with code 1 error but without succes, i didn't found this: npm run build -- --prod on my .angular-cli.json How can i solve this problem ? Thanks

The logs:

    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   'build',
1 verbose cli   '--',
1 verbose cli   '--prod' ]
2 info using [email protected]
3 info using [email protected]
4 verbose run-script [ 'prebuild', 'build', 'postbuild' ]
5 info lifecycle [email protected]~prebuild: [email protected]
6 info lifecycle [email protected]~build: [email protected]
7 verbose lifecycle [email protected]~build: unsafe-perm in lifecycle true
8 verbose lifecycle [email protected]~build: PATH: C:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin;C:\projects\ApoManagement\ApoManagement\ClientApp\node_modules\.bin;C:\Program Files (x86)\Parallels\Parallels Tools\Applications;C:\Program Files\Microsoft MPI\Bin\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files\dotnet\;C:\Program Files (x86)\Skype\Phone\;C:\Program Files (x86)\Microsoft SQL Server\130\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\140\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\110\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\110\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\ManagementStudio\;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\130\Tools\Binn\;C:\Program Files\Microsoft SQL Server\130\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\Client SDK\ODBC\130\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\140\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\140\Tools\Binn\ManagementStudio\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\Microsoft VS Code\bin;C:\Program Files\Git\cmd;C:\Program Files\nodejs\;C:\Users\MYUSER\AppData\Local\Programs\Python\Python36-32\Scripts\;C:\Users\MYUSER\AppData\Local\Programs\Python\Python36-32\;C:\Users\MYUSER\AppData\Local\Microsoft\WindowsApps;C:\Users\MYUSER\AppData\Local\atom\bin;C:\Program Files\Microsoft VS Code\bin;C:\Users\MYUSER\AppData\Local\Microsoft\WindowsApps;"C:\Users\MYUSER\AppData\Roaming\npm;C:\Program Files\nodejs";C:\Users\MYUSER\AppData\Roaming\npm
9 verbose lifecycle [email protected]~build: CWD: C:\projects\ApoManagement\ApoManagement\ClientApp
10 silly lifecycle [email protected]~build: Args: [ '/d /s /c', 'ng build --extract-css "--prod"' ]
11 silly lifecycle [email protected]~build: Returned: code: 1  signal: null
12 info lifecycle [email protected]~build: Failed to exec build script
13 verbose stack Error: [email protected] build: `ng build --extract-css "--prod"`
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 C:\projects\ApoManagement\ApoManagement\ClientApp
16 verbose Windows_NT 10.0.17134
17 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "build" "--" "--prod"
18 verbose node v10.14.2
19 verbose npm  v6.4.1
20 error code ELIFECYCLE
21 error errno 1
22 error [email protected] build: `ng build --extract-css "--prod"`
22 error Exit status 1
23 error Failed at the [email protected] build script.
23 error This is probably not a problem with npm. There is likely additional logging output above.
24 verbose exit [ 1, true ]

Answer 1

I had the same problem as you, I've managed to solve it by:

Edit your .csproj file: Right click on you project - select Edit ____.csproj

Replace this:

<Exec WorkingDirectory="$(SpaRoot)" Command="npm run build -- --prod" />
<Exec WorkingDirectory="$(SpaRoot)" Command="npm run build:ssr -- --prod" Condition=" '$(BuildServerSideRenderer)' == 'true' " />

With this:

<Exec WorkingDirectory="$(SpaRoot)" Command="npm run build --prod" />
<Exec WorkingDirectory="$(SpaRoot)" Command="npm run build:ssr --prod" Condition=" '$(BuildServerSideRenderer)' == 'true' " />

Basically the command npm run build -- --prod, should be npm run build --prod