error AggregateException The NPM script 'start' exited without indicating that the Angular CLI when publish asp.net core and angular 9?

Question

I work on asp.net core 2.2 with angular 9

when publish web app on IIS I get error

but can't solve it so can you help me please

error as below :

AggregateException: One or more errors occurred. (One or more errors occurred. (The NPM script 'start' exited without indicating that the Angular CLI was listening for requests. The error output was: Error: EPERM: operation not permitted, mkdir 'C:\Windows\system32\config\systemprofile\AppData\Roaming\npm'

 TypeError: Cannot read property 'get' of undefined

 at errorMessage (C:\Program Files\nodejs\node_modules\npm\lib\utils\error-message.js:38:39)
 at errorHandler (C:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:201:13)
 at C:\Program Files\nodejs\node_modules\npm\bin\npm-cli.js:78:20
 at cb (C:\Program Files\nodejs\node_modules\npm\lib\npm.js:225:22)
 at C:\Program Files\nodejs\node_modules\npm\lib\npm.js:263:24
 at C:\Program Files\nodejs\node_modules\npm\lib\config\core.js:81:7
 at Array.forEach (<anonymous>)
 at C:\Program Files\nodejs\node_modules\npm\lib\config\core.js:80:13
 at f (C:\Program Files\nodejs\node_modules\npm\node_modules\once\once.js:25:25)
 at afterExtras (C:\Program Files\nodejs\node_modules\npm\lib\config\core.js:171:20)
 C:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:97
 var doExit = npm.config.loaded ? npm.config.get('_exit') : true
 ^

 TypeError: Cannot read property 'loaded' of undefined
 at exit (C:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:97:27)
 at process.errorHandler (C:\Program Files\nodejs\node_modules\npm\lib\utils\error-handler.js:216:3)
 at process.emit (events.js:223:5)
 at process._fatalException (internal/process/execution.js:150:25)
 Error: EPERM: operation not permitted, mkdir 'C:\Windows\system32\config\systemprofile\AppData\Roaming\npm'

What I have tried:

1- install .net core 2.2.7 hosting bundle

2-install vc++2015 distribution

but I don't know what is remaining to do

Answer 1

It looks like you configured dev mode on the server so spa services it is trying to use the node dev server. But the publish does not include the angular sources.

Answer 2

Al parecer el problema es el servidor de spa, trata de revisar la configuración y tus fuentes.

Answer 3

Hi @ahmed salah ,

I think the problem can be caused by incorrect environment you specified. Please try to set the environment to production with the line of code <environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Production" />.

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Answer 4

this error happens due to json files wrong encoding so you must ensure that all your json files like (angular-cli.json, tslint.json and tsconfig.json) are UTF-8 encoded not UTF With BOM.