I get this error:Cannot find module '@angular-devkit/build-angular/package.json when I try run my app with ng serve from Linux

Question

hello guys I have this next error when I try run my App from the terminal(linux), when I run this command:

ng serve

and I get this

Answer 1

Had this exact issue on an existing Angular 10 project. The following steps resolved the issue for me:

1. Delete the package-lock.json file.
2. Delete the node_modules folder and all of its contents.
3. Run npm install. Note that in my case I had to add the --force flag. YMMV

At this point, ng build --prod completed successfully for me.

Answer 2

npm install run this in your terminal and done.

Answer 3

Please try installing the npm on a project folder. I had installed npm globally but installing the npm once again on a solution folder fixed my issue.

npm install in the project folder will do the trick. Then do ng serve -o

Answer 4

In my case 2 commands helped:

npm install --save-dev @angular-devkit/build-angular

npm install --save-dev @angular-devkit/core