Cant upgrade Angular from 6 to 7

Question

When i fire ng update it shows two entries for @angular/core. and when i fire ng update @angular/core it goes to 8 form 6

Collecting installed dependencies...
Found 99 dependencies.
Two or more projects are using identical roots. Unable to determine project using current working directory. Using default workspace project instead.
    We analyzed your package.json, there are some packages to update:

      Name                               Version                  Command to update
     --------------------------------------------------------------------------------
      @angular/cdk                       6.4.7 -> 8.2.2           ng update @angular/cdk
      @angular/core                      6.1.10 -> 8.2.9          ng update @angular/core
      @angular/core                      6.1.10 -> 7.2.15         ng update @angular/core
      @angular/material                  6.4.7 -> 8.2.2           ng update @angular/material

Answer 1

You need to specify the version or it will update to the latest version.

ng update @angular/[email protected] @angular/[email protected]

There may be further changes you need to make before updating.

Please see this link for more info https://update.angular.io/#6.0:7.0