title: how to fix Error: export 'ɵsupportsWebAnimations'
body: <p>im trying to replicate this component:</p>
  <p>stackblitz.com/edit/angular-material-star-rating?file=package.json</p>
  <p>however, on my project im unable to run it due to the following errors:</p>
  <pre><code>./node_modules/@angular/platform-browser/fesm2015/animations.mjs:533:9-31 - Error: export 'ɵsupportsWebAnimations' (imported as 'ɵsupportsWebAnimations') was not found in '@angular/animations/browser' (possible exports: AnimationDriver, ɵAnimation, ɵAnimationEngine, ɵAnimationStyleNormalizer, ɵNoopAnimationDriver, ɵNoopAnimationStyleNormalizer, ɵWebAnimationsDriver, ɵWebAnimationsPlayer, ɵWebAnimationsStyleNormalizer, ɵallowPreviousPlayerStylesMerge, ɵcontainsElement, ɵinvokeQuery, ɵvalidateStyleProperty)
  
  ./node_modules/@angular/platform-browser/fesm2015/animations.mjs:533:69-88 - Error: export 'ɵCssKeyframesDriver' (imported as 'ɵCssKeyframesDriver') was not found in '@angular/animations/browser' (possible exports: AnimationDriver, ɵAnimation, ɵAnimationEngine, ɵAnimationStyleNormalizer, ɵNoopAnimationDriver, ɵNoopAnimationStyleNormalizer, ɵWebAnimationsDriver, ɵWebAnimationsPlayer, ɵWebAnimationsStyleNormalizer, ɵallowPreviousPlayerStylesMerge, ɵcontainsElement, ɵinvokeQuery, ɵvalidateStyleProperty)
  </code></pre>
  <p>i have already did the</p>
  <pre><code>npm install --save @angular/material @angular/cdk @angular/animations --force
  </code></pre>