Android builds do not work anymore

Development Platform & Builds Mobile
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10

I also have faced with a lot of troubles while trying to make things work. So here is a small list of my advices:

  1. Reinstall Android studio as it suggested here. I don’t sure is it necessary, but this may clear out results of all your failed attempts.
  2. Go to SDK manager and install additional Android Studio 10.0+ (R and Q) for API level 29 and 30. Uninstall SDK for API level 33.
  3. Go to C:\Users\<UserName>\AppData\Local\Android\Sdk\ndk\21.4.7075529\platforms. Firstly make sure that you have only this NDK version (21.4.7075529). Then check in the folder above for the android-29 folder.
  4. For launching on android always run the UE in administrator mode.
  5. In your projects settings manually set up location of JAVA to the one installed with Android Studio (usually it is C:\Program Files\Android\Android Studio\jre).
  6. In UE projects settings find Android SDK section and set these settings: SDK API level to 29 and NDK API level to android-29.
  7. After that try to launch the game on your device. If you got the Failed to open descriptor error, then create a build and install your game on the phone via bat-script.
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