Angular 5.2 -> 6.0 migration - angular.json not replacing angular-cli.json

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So I've been following the official documentation to upgrade from Angular 5.2 to Angular 6.0 (I'm migrating an app to Angular 13).

When I run the command NG_DISABLE_VERSION_CHECK=1 npx @angular/cli@6 update @angular/cli@6 I've got no errors whatsoever:

$ NG_DISABLE_VERSION_CHECK=1 npx @angular/cli@6 update @angular/cli@6
npx : 336 installé(s) en 36.906s
Using package manager: 'npm'
Collecting installed dependencies...
Found 100 dependencies.
Fetching dependency metadata from registry...
UPDATE package.json (4717 bytes)
✔ Packages successfully installed.

This command is supposed to replace/migrate the angular-cli.json file to a new file called angular.json but when I look at my files I still have the old angular-cli.json file and not the new one.

I've tried a lot of suggestions found here and there on the internet and SO such as installing/reinstalling angular-cli, cleaning my cache, I tried to revert to a working commit, I tried the ng update @angular/cli --from={blah} --migrate-only command but nothing seems to work...

Any ideas?

Papple

Found a solution in the end by emptying my .npmrc file and running the command again