Can't find stylesheet to import.

I have face some modules not found issues after migrate Angular 11.0.2 ngx-admin dashboard to Angular 15.2.9

but respective modules are at node_modules

even i tried with delete package-lock.json and node_modules and clear npm cache as well

i tried with downgrade nebular theme to version 9.0.3 as well

but issue is not fixed

i followed [https://update.angular.io/?v=11.0-16.0][1] link as reference

during build and start the project i got following errors

Error 1

node_modules/@angular-devkit/build-angular/node_modules/sass-loader/dist/cjs.js): SassError: Can't find stylesheet to import. ╷ 2 │ @import '~@nebular/theme/styles/theming'; │ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ╵ src/app/@theme/styles/themes.scss 2:9 @import src/app/pages/pages.component.scss 2:9 @import

i also post this issue in this group as well

[issue stake overflow url](https://stackoverflow.com/questions/77012871/upgrade-ngx-admin-7-00-angular-11-to-angular-15-2-9)

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