[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

Answer 3

In my case, I needed to just run

npm install

then the command

ng update @angular/core @angular/cli 

completed successfully

Answer 4

npm install @angular-devkit/schematics

solved the problem for me

Answer 5

In my case, I was running the ng update command in a directory which didn't have the package.json. Running the command in correct directory fixed it for me.

Answer 6

npm update 

and

npm install 

fixed this issue for me just now.

Answer 7

1. Just Create New Project by using ng new prjName.

2. Check for @angular-devkit/schematics if not found then run npm install @angular-devkit/schematics

3. It will install @angular-devkit/schematics if finds any vulnerability just fix them by npm audit fix

4. Just hit ng update @angular/cli@^10 @angular/core@^10 for specific version (here for version 10) or just run ng update

5. npm cache clean --force

6. ng update