title: I am getting a red variable error in my Android Studio
body: <p>Error:</p>
  
  <pre><code>Execution failed for task ':app:processDebugResources'.
  
  com.android.ide.common.process.ProcessException: Failed to execute aapt
  </code></pre>
  
  <p>Below screenshot</p>
  
  <p><img src="https://i.stack.imgur.com/nQqYE.jpg" alt="Image"></p>