@nrwl/storybook not able to build or serve an angular storybook

[SeverinFriede]

Current Behavior

I've migrated my workspace (containing angular apps, react and angular libs and a HTML/CSS library) by using nx migrate latest to the latest version of nx, angular etc.
All other tasks like linting, testing or building work fine but running nx run angular:build-storybook or nx run angular:storybook (where angular is really the name of our library project) do fail with the following output:

> nx run angular:build-storybook --verbose 

>  NX  ui framework: @storybook/angular

Cannot read property 'targets' of undefined
TypeError: Cannot read property 'targets' of undefined
    at readTargetOptions (\code\web-essentials\node_modules\@nrwl\devkit\src\executors\read-target-options.js:13:54)
    at resolveCommonStorybookOptionMapper (\code\web-essentials\node_modules\@nrwl\storybook\src\executors\utils.js:142:60)
    at storybookOptionMapper (\code\web-essentials\node_modules\@nrwl\storybook\src\executors\build-storybook\build-storybook.impl.js:28:140)
    at \code\web-essentials\node_modules\@nrwl\storybook\src\executors\build-storybook\build-storybook.impl.js:13:24
    at Generator.next (<anonymous>)
    at fulfilled (\code\web-essentials\node_modules\tslib\tslib.js:114:62)

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

>  NX   ERROR  Running target "angular:build-storybook" failed

  Failed tasks:

  - angular:build-storybook

  Hint: run the command with --verbose for more details.

Expected Behavior

Building or serving the storybook properly.

Steps to Reproduce

Using nx run angular:storybook or nx run angular:build-storybook
I've also deleted package-lock.json and cleaned node_modules (twice) so far.

Failure Logs

TypeError: Cannot read property 'targets' of undefined
    at readTargetOptions (\code\web-essentials\node_modules\@nrwl\devkit\src\executors\read-target-options.js:13:54)
    at resolveCommonStorybookOptionMapper (\code\web-essentials\node_modules\@nrwl\storybook\src\executors\utils.js:142:60)
    at storybookOptionMapper (\code\web-essentials\node_modules\@nrwl\storybook\src\executors\build-storybook\build-storybook.impl.js:28:140)
    at \code\web-essentials\node_modules\@nrwl\storybook\src\executors\build-storybook\build-storybook.impl.js:13:24
    at Generator.next (<anonymous>)
    at fulfilled (\code\web-essentials\node_modules\tslib\tslib.js:114:62)

Environment

>  NX  Report complete - copy this into the issue template

  Node : 14.17.4
  OS   : win32 x64
  npm  : 7.21.0

  nx : 13.4.3
  @nrwl/angular : 13.4.3
  @nrwl/cli : 13.4.3
  @nrwl/cypress : 13.4.3
  @nrwl/devkit : 13.4.3
  @nrwl/eslint-plugin-nx : 13.4.3
  @nrwl/express : undefined
  @nrwl/jest : 13.4.3
  @nrwl/linter : 13.4.3
  @nrwl/nest : undefined
  @nrwl/next : undefined
  @nrwl/node : undefined
  @nrwl/nx-cloud : undefined
  @nrwl/react : 13.4.3
  @nrwl/react-native : undefined
  @nrwl/schematics : undefined
  @nrwl/tao : 13.4.3
  @nrwl/web : 13.4.3
  @nrwl/workspace : 13.4.3
  @nrwl/storybook : 13.4.3
  @nrwl/gatsby : undefined
  typescript : 4.5.4
  rxjs : 7.4.0
  ---------------------------------------
  Community plugins:
         @angular/animations: 13.1.1
         @angular/cdk: 13.1.1
         @angular/common: 13.1.1
         @angular/compiler: 13.1.1
         @angular/core: 13.1.1
         @angular/forms: 13.1.1
         @angular/platform-browser: 13.1.1
         @angular/platform-browser-dynamic: 13.1.1
         @angular/router: 13.1.1
         @angular-devkit/build-angular: 13.1.2
         @angular/cli: 13.1.2
         @angular/compiler-cli: 13.1.1
         @angular/language-service: 13.1.1
         @storybook/angular: 6.4.9

[SeverinFriede]

I had a look at @nrwl\storybook\src\executors\utils.js:142:60 and there the problem was that it could not resolve the default project. So after adding "defaultProject": "angular" to my nx.json it works again.

[mandarini]

Hi there @SeverinFriede ! Thanks for filing an issue. Can you check out this comment here? It is our intention for the error messaging to be better. At this point, specifying the projectBuildConfig will do the trick for you! :)

Let me know if you need anything else, and I can reopen the issue! :)

[mandarini]

New docs for styles and stylePreprocessorOptions

[github-actions]

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