title: Migration failed: Incompatible peer dependencies found - Upgrading Angular to Version 12
body: <p>I am upgrading my apps from Angular v11 to Angular v12. I have this error when I try to upgrade Angular packages:</p>
  <pre><code>ng update @angular/core@12 @angular/cli@12
  </code></pre>
  <pre><code>Migration failed: Incompatible peer dependencies found 
  
  Package has an incompatible peer dependency to &quot;@angular/common&quot; (requires &quot;^8.1.3 || ^9.0.0&quot; (extended), would install &quot;12.0.0&quot;).
  Package has an incompatible peer dependency to &quot;@angular/core&quot; (requires &quot;^8.1.3 || ^9.0.0&quot; (extended), would install &quot;12.0.0&quot;).
  </code></pre>
  <p>Those are just warnings, but migration has failed because of them.</p>
  <p>I can choose to use the <code>--force</code> option to ignore incompatible peer dependencies and address these warnings later. Should I do that? If I do that will that break the packages that have incompatible peer dependencies?</p>