Play Store failed to open descriptor

Development Getting Started & Setup
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1

This question was already discussed and even solved at Google Play services removes the leading zeros for .obb file - Mobile - Unreal Engine Forums

I followed the solution and renamed my obb version into 10001, but the new apk still failed to open descriptor.
Please give me more ideas of what else I can do.

I uploaded my apk in production version in Google play, something didn’t work with Alpha test. Of course I regret about that but it happened this way. So everyone can see it doesn’t work.

I took release.keystore, alias and passwords in my computer, prepared for my other app by another programmer. Can this be an issue?

2

I am having the same issue. The I tested the deployment version by directly installing on my device, and it works. It does not work when I download the app from the google play store. Anyone else having this issue?

3

Thank you for your note, itsmyroad. Did you test your app on Alpha or Beta?

4

Sorry for the long delay between responses. The app is being tested in alpha. I have tried repackaging the deployment version, and it still works fine when installed on my phone from my computer. When I download it from the google play store, it still gives me the error.

On a side note: I’m not sure if this matters, but I am using google’s recommendation that I compress the .obb file when I add it as an expansion file. I have also cleared out the old expansion files and uploaded a new expansion file instead of doing a “patch file.”

Hope this helps find an answer to the problem.

5

aabun, did you get it to work?

6

itsmyroad, did you get it fixed?

7

It turned out that my problem happened to be compressing the .obb file. Google Play claimed it supported zipping .obb files to reduce size on disk, but it was causing problems in the play store for me.

8

Glad you got it fixed. Are you familiar with the zipalign command for the command line?

zipalign -v 4 your_project_name-unaligned.apk your_project_name.apk

I use this to zipalign my project but it doesn’t allow me to use the same project name for the “your_project_name.apk” term with the “your_project_name_unaligned.apk” term. Do file names for the apk and obb files have to be the same?