failed to open descriptor file android

I’m getting the error “Couldn’t open descriptor file for mobile.” When I try to install it as AAB on my phone, I get this error when opening it. …/../../Platformlar/Platformlar.uproject descriptor file could not be opened. What’s the solution? Thank you.

Hello @Barymouse ,
I did some research on this error and found an old post where they talk about it. Here are a few possible solutions that might work for you:

The first Solution is :

  1. Launch the project onto the device and get the descriptor error.
  2. Create a packaged build (I was using Multi).
  3. Use the .bat files to remove the app from the device.
  4. Use the .bat files to install the app to the device again.
  5. After that, launching onto the device worked again without the descriptor file error.

The second Solution is :
Add android:requestLegacyExternalStorage="true" in Project Settings > Android > Extra Tags for the application node by clicking the “+” icon.

(For both, make sure you’ve deleted the Binaries, Intermediate, and Saved folders before repackaging/rebuilding your project).

Another solution is setting Platforms > Android > Install Location to Auto.

And the last one is to Disable Android File Server.

I’ll leave the post here in case you want to take a look at it,other users also shared different solutions there.

Hope it helps!