title: Vaadin 14.6.1 - Error: Can't resolve 'lumo-css-framework/all-classes.css'
body: <p>I am migrating a Vaadin Springboot/Gradle application from Vaadin 14.5.1 to  14.6.1. I copied the new file(s) from the themes folder from a freshly generated app from <a href="https://start.vaadin.com/" rel="noreferrer">start.vaadin.com</a>, in particular frontend/themes/my-app/styles.css</p>
  <pre><code>@import url('lumo-css-framework/all-classes.css');
  </code></pre>
  <p>When running the <code>vaadinBuildFrontend</code> task, I receive the following error (deep in other messages):</p>
  <pre><code>ERROR in ./themes/my-app/styles.css
  Module build failed (from ../node_modules/css-loader/dist/cjs.js):
  Error: Can't resolve 'lumo-css-framework/all-classes.css' in '/Users/&lt;..&gt;/my-app/frontend/themes/my-app
  </code></pre>
  <p>All build dependencies are seemingly the same as in the sample maven project. All generated files had been deleted prior to building the frontend.</p>
  <p>After comparing the generated files, I found that the sample maven project contains <code>&quot;lumo-css-framework&quot;: &quot;^3.0.11&quot;</code> in the generated <code>package.json</code>, while the gradle project does not contain this.</p>
  <p>The environment:</p>
  <ul>
  <li>Spring 2.5.0</li>
  <li>Gradle 7.0.1</li>
  <li>Vaadin Gradle plugin 0.14.6.0</li>
  <li>macOS 11.2.3 and Centos 7</li>
  </ul>
  <p>What am I missing in the setup?</p>