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Cinqed's avatar
Cinqed
Honored Guest
6 years ago

OVRBuild Error in Unity: Gradle bug Stopping Any Quest Development (both 2018 and 2019 Unity)

Hi,
I'm just getting started with Quest development on Unity. But I can't get through the initial tutorial / sample scenes. 

I get the same error starting with a "from scratch" project. All I do is add the Oculus integration and try and build one of the sample scenes to the device. Both 2018 and 2019.

The bug in Unity shows up as:

Gradle has exited unexpectedly.
UnityEngine.Debug:LogError(Object)
OculusBuildApp:BuildGradleProject() (at Assets/Oculus/VR/Editor/OVRBuild.cs:385)
OculusBuildApp:OVRBuildRun() (at Assets/Oculus/VR/Editor/OVRBuild.cs:285)
<>c:<StartBuildAndRun>b__29_0() (at Assets/Oculus/VR/Editor/OVRBuild.cs:261)
System.Threading.ThreadHelper:ThreadStart()

But the bug really comes down to the following code from OVRBuild:

while (apkOutputSuccessful == null)
{
  if (timeout.ElapsedMilliseconds > 50000)
  {
    UnityEngine.Debug.LogError("Gradle has exited unexpectedly.");
    apkOutputSuccessful = false;
  }
  System.Threading.Thread.Sleep(100);
}

The problem is that apkOutputSuccessful is already false before the loop is ever reached.

Help!!
I can't even get started with Quest/Unity dev while this is going on :(

Thanks,
Dave G
gradle
OVRBuild
Unity