Rules skipped due to selector errors: legend+* -> Cannot read property 'type' of undefined

Bug description:

When building angular using the production configuration, the step Generating index html... produces following warning: 1 rules skipped due to selector errors: legend+* -> Cannot read property 'type' of undefined

See this screenshot:

Reproduction Steps

In Terminal:

ng new testproject --style scss
cd testproject
ng add @ng-bootstrap/ng-bootstrap
npm run build

Versions of Angular, ng-bootstrap and Bootstrap:

Angular: 13.3.0 - 13.3.2

ng-bootstrap: 12.0.2

Bootstrap: 5.1.3

Issue Analytics

State:
Created a year ago
Reactions:20
Comments:57 (1 by maintainers)

Top GitHub Comments

17reactions

hhubikcommented, May 20, 2022

Had the same issue. Managed to solve it by replacing "optimization": true in angular.json with

"optimization": {
  "scripts": true,
  "styles": {
    "minify": true,
    "inlineCritical": false
  }

9reactions

ImmuneGitcommented, Apr 22, 2022

I get even two messages:

Warning: 2 rules skipped due to selector errors:
  legend+* -> Cannot read properties of undefined (reading 'type')
  legend + * -> Cannot read properties of undefined (reading 'type')

It’s because you installed bootstrap and ng-bootstrap

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