How to resolve this build error in Angular 8 ASP.NET

Question

I get this error Cannot find module '@angular/core'. and search SO for help on this and there are questions but nothing helps me.

Does this has to do with wrong version import? In the command windows I run

L:\NetProject\BooksProject\BooksProject\ClientApp>ng build

and get the same error

BooksProject> 
BooksProject> fail: Microsoft.AspNetCore.SpaServices[0]
BooksProject>       ERROR in ../../../node_modules/@angular/cdk/bidi/typings/dir-document-token.d.ts(8,32): error TS2307: Cannot find module '@angular/core'.
BooksProject>       ../../../node_modules/@angular/cdk/bidi/typings/dir.d.ts(8,59): error TS2307: Cannot find module '@angular/core'.
BooksProject>       ../../../node_modules/@angular/cdk/bidi/typings/directionality.d.ts(8,41): error TS2307: Cannot find module '@angular/core'.
BooksProject>       ../../../node_modules/@angular/cdk/text-field/typings/autofill.d.ts(9,69): error TS2307: Cannot find module '@angular/core'.
BooksProject>       ../../../node_modules/@angular/cdk/text-field/typings/autofill.d.ts(10,28): error TS2307: Cannot find module 'rxjs'.
BooksProject>       ../../../node_modules/@angular/cdk/text-field/typings/autosize.d.ts(8,71): error TS2307: Cannot find module '@angular/core'.
BooksProject>

If I debug the app a get browser window with only the text, "Cannot GET /"

I deleted the node_modules folder and did npm install

I run the command after suggestion from @HariniP, Thanks!

npm i @angular/core

And this is the output, do I need to fix all this WARN?

L:\NetProject\BooksProject\BooksProject\ClientApp>npm i @angular/core
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN The package protractor is included as both a dev and production dependency.
npm WARN The package ts-node is included as both a dev and production dependency.
npm WARN The package tslint is included as both a dev and production dependency.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [email protected] (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for [email protected]: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

+ @angular/[email protected]
updated 1 package and audited 19503 packages in 33.58s
found 1 moderate severity vulnerability
  run `npm audit fix` to fix them, or `npm audit` for details

L:\NetProject\BooksProject\BooksProject\ClientApp>

Hiba T · Accepted Answer · 2019-06-21 15:42:53Z

1

i fixed my problem by adding :

<TypeScriptExperimentalDecorators>True</TypeScriptExperimentalDecorators> <TypeScriptEmitDecoratorMetadata>True</TypeScriptEmitDecora

this link might help u TypeScript error

answered Jun 21, 2019 at 15:42

Hiba T

418 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Harini P · Accepted Answer · 2019-06-13 18:18:41Z

0

Install angular by using the command npm i @angular/core in your project directory.

answered Jun 13, 2019 at 18:18

Harini P

6276 silver badges12 bronze badges

5 Comments

Harini P Over a year ago

Did you try building after that?

Tord Larsen Over a year ago

I clean and rebuild project from VS then I get Build: 1 succeeded, 0 failed, 0 up-to-date, 0 skipped - There are no error, but from windows command prompt i get this initial error and when I debug run

Harini P Over a year ago

Ok, so VS build succeeded, are you able to view the application in browser?

Tord Larsen Over a year ago

The browser say only "Cannot GET /", it does not load my Component

Tord Larsen Over a year ago

in Startup.cs I can place a breakpoint in ConfigureServices and program halts ok, This initial error comes when browser open after like 60 sec of loading, and the only think visible in the browser is "Cannot GET /", in top left corner

Collectives™ on Stack Overflow

How to resolve this build error in Angular 8 ASP.NET

2 Answers 2

Comments

5 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

5 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related