title: ERROR in The Angular Compiler requires TypeScript >=3.6.4 and <3.8.0 but 3.8.2 was found instead
body: <p>I ran</p>
  
  <pre><code>ng version
  </code></pre>
  
  <p>and got the following output:</p>
  
  <pre><code>Angular CLI: 9.0.3
  Node: 12.16.1
  OS: win32 x64
  
  Angular: 9.0.2
  ... animations, common, compiler, compiler-cli, core, forms
  ... language-service, platform-browser, platform-browser-dynamic
  ... router
  Ivy Workspace: Yes
  
  Package                           Version
  -----------------------------------------------------------
  @angular-devkit/architect         0.803.25
  @angular-devkit/build-angular     0.803.25
  @angular-devkit/build-optimizer   0.803.25
  @angular-devkit/build-webpack     0.803.25
  @angular-devkit/core              8.3.25
  @angular-devkit/schematics        9.0.3
  @angular/cdk                      8.2.3
  @angular/cli                      9.0.3
  @angular/material                 8.2.3
  @ngtools/webpack                  8.3.25
  @schematics/angular               9.0.3
  @schematics/update                0.900.3
  rxjs                              6.5.4
  typescript                        3.8.2
  webpack                           4.39.2
  </code></pre>
  
  <p>If I try set the type script lower it complains the project is Angular 9 and can't use that type of type script. Not sure what to do, any help welcomed, thanks.</p>