@nrwl/angular:ng-packagr-lite executor doesn't compile partially compiled libraries

Current Behavior

Hi. So as the title states, when you use a library that is built with the partial compilation mode of Ivy, it doesn’t work with ng-packagr-lite. The documentation says nothing about differences between @nrwl/angular:ng-packagr-lite and @nrwl/angular:package (in terms of requirements and compilation process), so the latter works fine and precompiles old libraries while the former one doesn’t. Maybe I am not aware of how it should work, but I am stuck right now as I don’t need a publishable library inside my monorepo but because of this issue, I have to use @nrwl/angular:package. Please help me understand if I am doing something wrong. I really appreciate any help you can provide.

Expected Behavior

@nrwl/angular:ng-packagr-lite should compile correctly with partially compiled Angular libraries.

Github Repo

https://github.com/VanTigranyan/test-ngxs-nx/tree/master/libs/store

Steps to Reproduce

1.Run “nx build store”. 2. Errors say that NgxsRootModule is not an NgModule or it is not compiled correctly with ngcc. 3. If you change the executor to @nrwl/angular:package, it compiles correctly.

Nx Report

Node : 16.18.1
   OS   : darwin x64
   npm  : 9.1.2
   
   nx : 15.2.1
   @nrwl/angular : 15.2.1
   @nrwl/cypress : 15.2.1
   @nrwl/detox : Not Found
   @nrwl/devkit : 15.2.1
   @nrwl/esbuild : Not Found
   @nrwl/eslint-plugin-nx : Not Found
   @nrwl/expo : Not Found
   @nrwl/express : Not Found
   @nrwl/jest : 15.2.1
   @nrwl/js : 15.2.1
   @nrwl/linter : 15.2.1
   @nrwl/nest : Not Found
   @nrwl/next : Not Found
   @nrwl/node : Not Found
   @nrwl/nx-cloud : Not Found
   @nrwl/nx-plugin : Not Found
   @nrwl/react : Not Found
   @nrwl/react-native : Not Found
   @nrwl/rollup : Not Found
   @nrwl/schematics : Not Found
   @nrwl/storybook : 15.2.1
   @nrwl/web : Not Found
   @nrwl/webpack : 15.2.1
   @nrwl/workspace : 15.2.1
   typescript : 4.8.4
   ---------------------------------------
   Local workspace plugins:
   ---------------------------------------
   Community plugins:

Failure Logs

> nx run store:build:production

Building Angular Package

------------------------------------------------------------------------------
Building entry point 'store'
------------------------------------------------------------------------------

 >  NX   libs/store/src/lib/store.module.ts:22:12 - error NG6002: 'NgxsRootModule' does not appear to be an NgModule class.

   
   22   imports: [
                 ~
   23     NgxsModule.forRoot([TestState]),
      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   24   ],
      ~~~
   
     node_modules/@ngxs/store/src/modules/ngxs-root.module.d.ts:11:22
       11 export declare class NgxsRootModule {
                               ~~~~~~~~~~~~~~
       This likely means that the library (@ngxs/store) which declares NgxsRootModule has not been processed correctly by ngcc, or is not compatible with Angular Ivy. Check if a newer version of the library is available, and update if so. Also consider checking with the library's authors to see if the library is expected to be compatible with Ivy.
   

Error: libs/store/src/lib/store.module.ts:22:12 - error NG6002: 'NgxsRootModule' does not appear to be an NgModule class.

22   imports: [
              ~
23     NgxsModule.forRoot([TestState]),
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24   ],
   ~~~

  node_modules/@ngxs/store/src/modules/ngxs-root.module.d.ts:11:22
    11 export declare class NgxsRootModule {
                            ~~~~~~~~~~~~~~
    This likely means that the library (@ngxs/store) which declares NgxsRootModule has not been processed correctly by ngcc, or is not compatible with Angular Ivy. Check if a newer version of the library is available, and update if so. Also consider checking with the library's authors to see if the library is expected to be compatible with Ivy.

    at /Users/vtigranyan/projects/wf-fusion/test-ngxs/node_modules/@nrwl/angular/src/executors/ng-packagr-lite/ng-packagr-adjustments/ngc/compile-source-files.js:138:19
    at Generator.next (<anonymous>)
    at fulfilled (/Users/vtigranyan/projects/wf-fusion/test-ngxs/node_modules/@nrwl/angular/node_modules/tslib/tslib.js:115:62)

 ——————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————

 >  NX   Running target "store:build" failed

   Failed tasks:
   
   - store:build:production
   
   Hint: run the command with --verbose for more details.

Additional Information

No response

[leosvelperez]

@VanTigranyan that’s fair! I can see the issue. We see it natural for folks to discover the ng-packagr-lite executor (or using buildable libraries) when coming from the docs explaining incremental builds, but we can/should definitely improve the executor docs to include that info. The incremental builds recipe requirements is just outdated, we no longer generate workspaces with a postinstall script to run ngcc by default because more and more libraries are moving to full Ivy and don’t require it. So, it should be added by developers should they need it. I’ll amend that as well.

[VanTigranyan]

Thanks a lot, @leosvelperez. I appreciate your help and also the consideration of changing docs a bit.