title: Flutter Desktop Linux build failed
body: <p>When I try to build my app to Flutter Desktop its fail with this message:</p>
  <pre><code>Launching lib/main.dart on Linux in debug mode...
  Exception: Build process failed
  </code></pre>
  <p>My configuration is:</p>
  <pre><code>Doctor summary (to see all details, run flutter doctor -v):
  [✓] Flutter (Channel master, 1.19.0-2.0.pre.142, on Linux, locale pt_BR.UTF-8)
   
  [✓] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
  [✓] Linux toolchain - develop for Linux desktop
  [✓] Android Studio (version 3.6)
  [✓] Connected device (1 available)
  </code></pre>
  <p>Can anyone know how to fix this?</p>
  <p>Thanks</p>