message: Don't call QFile::exists() with empty filename
diff: @@ -210,11 +210,15 @@ void PersistantConfig::AddAndroidHosts()
  }
  }
  - QString androidSDKPath = QFile::exists(Android_SDKPath) ? QString(Android_SDKPath) : QString();
  + QString androidSDKPath = (!Android_SDKPath.isEmpty() && QFile::exists(Android_SDKPath))
  + ? QString(Android_SDKPath)
  + : QString();
  SetConfigSetting("androidSDKPath", androidSDKPath);
  - QString androidJDKPath = QFile::exists(Android_JDKPath) ? QString(Android_JDKPath) : QString();
  + QString androidJDKPath = (!Android_JDKPath.isEmpty() && QFile::exists(Android_JDKPath))
  + ? QString(Android_JDKPath)
  + : QString();
  SetConfigSetting("androidJDKPath", androidJDKPath);
  