"Failed to open descriptor file" error with Android target SDK 29

Development Platform & Builds Mobile
, ,
1

Hi! I have a mobile game in development. It works fine with Android target SDK 28, but due to Google restrictions, I need to update the target SDK version to 29.

I can successfully build a game, but after deploy when I open the game I see an error message “Failed to open descriptor file …/…/…/GameName/GameName.uproject”.

I tried to disable plugins or package project first and then launch it, but no luck, the same error.

My building params:
Building Java with SDK API level ‘android-29’
LogPlayLevel: Building with Build Tools version ‘29.0.3’
NDK toolchain: r21b, NDK version: 21, GccVersion: 4.9, ClangVersion: 9.0.8
LogPlayLevel: Compiling Native 32-bit code with NDK API ‘android-21’
LogPlayLevel: Compiling Native 64-bit code with NDK API ‘android-21’

What I’m doing wrong? Am I missing something?

2

plus 1 to this, also run into this issue

3

+1, facing same problem on UE 4.25.3

4

Same here.
If you build with target 29 and install with abd, is your game working? Because for me, even if I make a fresh project using target sdk 29 it’s crashing with signal 11 log error

5

Try this.

309850-註解-2020-08-11-143331.png
309850-註解-2020-08-11-143331.png783×387 37.8 KB

Adding this tag in application node, Working on UE 4.24.

android:requestLegacyExternalStorage="true"

Ref:
[Android storage use cases and best practices  |  Android Developers][2]

6

I helped to me, thanks!

7

Glad I could help!

8

Unfortunately, your advice didn’t help me. Do you have any other ideas how to fix this?

1 Like
9

In my case works only when launch on my mobile adding :
android:requestLegacyExternalStorage=“true”,
but if I upload the shipping files to google play console to internal tests the app doesn´t open up and close. I dont know what to do… I´m using UE 4.25.3

10

I’m using UE4.24 default codework too.

Check things:

  1. API-29 SDK install?
  2. Using other Android SDK folder install by Android Studio ,Must install API-29 SDK
  3. Clean all temporary folder like “intermediate”, “Saved”… , And package project again.

My friend meets same problem, using methods above, and solve it (in my memory).

11

hello, in UE 4.24 which ndk and sdk do you use?,
if I add the tag in extra tags from node android:requestLegacyExternalStorage=“true”
I can pack the project unreal throws me these errors:

LogPlayLevel: Error: Output: Z:\app\build\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml:26: AAPT: error: attribute android:requestLegacyExternalStorage not found.
LogPlayLevel: Error: error: failed processing manifest.

I´m using sdk and ndk codeworks which are in UE4.24 by default, is this the problem?

12

Hi Rotis, I followed your intructions and now I can pack the game in UE4.24. Thank very much!!.

13

This did not work for me… 4.25.3

14

me too :frowning:

1 Like
15

I found the way, refer this link and install SDK 29

16

Please can you help me , I did what you say but my game still close on splash screen , without any message , i followed this

can you help me.

17

Look like worked for me, thanks

18

Did you manage to find the solution?

Adding android:requestLegacyExternalStorage=“true” did not work for me either at 4.26

19

No way to make it work…same situation here…

4.26.2 + SDK 29…

20

Anyone of you guys got it working? 4.25 and I too haven’t gotten this to work in distribution build, uploaded to closed Alpha on Google Play.
Added the ExternalStorage didn’t work, I also tried changing the name of the AAB (removing the “-android-shipping” from the name).