[ng update]: Error - The "@angular-devkit/schematics" package cannot be resolved from the workspace root directory

Question

ng update 

The "@angular-devkit/schematics" package cannot be resolved from the workspace root directory. This may be due to an unsupported node modules structure. Please remove both the "node_modules" directory and the package lock file; and then reinstall. If this does not correct the problem, please temporarily install the "@angular-devkit/schematics" package within the workspace. It can be removed once the update is complete.

Answer 1

I had this issue

First I ran this to see the structure of the package

npm ls @angular-devkit/schematics

it returned....

[email protected] C:\Users\wgrant\source\repos\WD\MMS\Mms\ClientApp

`-- (empty)

since it was empty I ran the following (if yours is not empty maybe try update instead of install)

npm install @angular-devkit/schematics

and after this, the 'ng update' ran successfuly

Answer 2

first use the command

npm remove -g @angular/cli 

and then

npm install -g @angular/cli 

in my case solved and installed the latest version of the angular