Angular 12 migration issue error NG6002: Appears in the NgModule.imports of AppModule, but itself has errors

user_2330610 0
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We are migrating our project to angular 12 and primeng 12, but we are stuck in this error that repeat it many times. We looked at other similar questions but couldn´t resolve with any of the solutions proposed on the answers.

When do ng build it shows this error:

Error: src/app/app-shared.module.ts:117:14 - error NG6002: Appears in the NgModule.imports of AppModule, but itself has errors

export class AppSharedModule {}

and is followed by many repeated errors in the same location.

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We already tried many solutions like do ng server, deactivate Ivy, but none of them solved.

Is there any solution for this? Thanks!

angular migration
2 Answers

To answer the question, we came to a conclusion that we made a mistake trying to migrate our project from angular 10 to 12 and prime ng 9 to 12.

When migrating an angular project, is not recomended upgrade multiple versions at the same time

As angular recomends in https://angular.io/guide/updating

So,now will make the migration step by step, first preparing the application, by removing all warnings and deprecated, and then migrating one version at a time.

Thanks!

Edit: After restart migration this error appears aggain after set "enableIvy": true as one of our modules is not compatible with ivy, setting to false solve the problem

user_23306100

Had this problem because one of the modules had a bundled package files inside. Had to remove it and add a proper package.json reference.

user_12711350
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