Versions of @angular/compiler-cli and typescript could not be determined

Question

I have installed Angular/cli and then try to run command ng serve then below error is throwing. I have tried lot of thing like uninstall angular/cli, npm cache clean, etc

Answer 1

Could you check that your "@angular/compiler" in your dependencies is compatible with angular/cli version.

For example :

  "devDependencies": {
    "@angular/cli": "1.4.8",
    "@angular/compiler-cli": "4.4.6",

is compatible with :

"@angular/compiler": "4.4.6",