Versions of @angular/compiler-cli and typescript could not be determined in the Angular Js

Question

Versions of @angular/compiler-cli and typescript could not be determined. The most common reason for this is a broken npm install. Please make sure your package.json contains both @angular/compiler-cli and typescript in devDependencies, then delete node_modules and package-lock.json (if you have one) and run npm install again.

for more details please have a look at the attachment

I have added @angular/cli, @angular/compilet-cli and typescripts as displayed in the image.

I have updated related version and ran npm i to reinstall all the packages , Restarted the VS code. But the same error is displayed.

I have tried answers of the Versions of @angular/compiler-cli and typescript could not be determined. But no luck.

Seeking for the help.

Possible duplicate of Versions of @angular/compiler-cli and typescript could not be determined — user6299088
– user6299088, Commented Jun 19, 2018 at 8:30
I have tried all the options of the stackoverflow.com/questions/47185611/… , But issue is not resovled. — Trilok Pathak
– Trilok Pathak, Commented Jun 19, 2018 at 8:39

score 0 · Accepted Answer · 2018-06-19 08:40:09Z

0

Steps to solve problem:

delete node_modules folder
run npm install --only=dev --legacy-bundling=false
run npm start

edited Jun 19, 2018 at 8:40

answered Jun 19, 2018 at 8:25

user6299088

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4 Comments

Trilok Pathak Over a year ago

I have tried that too, But no luck !! All the dependencies are installed under node_Modules then too i am facing such error. And i have also mentioned the cli and typeScripts in the Devdependenices.

user6299088 Over a year ago

Now try with-- > npm install --only=dev --legacy-bundling=false

user6299088 Over a year ago

only run npm start

user6299088 Over a year ago

jsut try using ng serve OR npm start

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