title: Angular Compiler (ivy?) keeps complaining about used identifier/variable
body: <p>Every time I try to compile the project, this error pops up.</p>
  <pre><code>Error: ./node_modules/@angular/cdk/__ivy_ngcc__/fesm2015/scrolling.js 23:12
  Module parse failed: Identifier 'ɵngcc0' has already been declared (23:12)
  File was processed with these loaders:
   * ./node_modules/@angular-devkit/build-angular/src/babel/webpack-loader.js
   * ./node_modules/@ngtools/webpack/src/ivy/index.js
  You may need an additional loader to handle the result of these loaders.
  | import * as ɵngcc3 from '@angular/cdk/collections';
  | 
  &gt; import * as ɵngcc0 from '@angular/core';
  | import * as ɵngcc1 from '@angular/cdk/platform';
  | import * as ɵngcc2 from '@angular/cdk/bidi';
  </code></pre>
  <p>I have no idea where to begin debugging this. I have tried googling the error code but to no avail. Nobody else seemed to have this error before. Restarting <code>ng serve</code> does not solve the problem. I am using Angular 11 and Angular Material for the project.</p>
  <p>How do I fix this and stop this error code from popping up?</p>