Error loading library on Android 10+ (cannot locate symbol "_Unwind_Resume")

Question

Error loading library on Android 10+ (cannot locate symbol "_Unwind_Resume")

Shiul93 opened this issue 3 years ago · comments

Luis Felipe Llamas Luaces commented 3 years ago

Hello!

We have a fork of your repository to use within our project, a educational robot called Robobo. The fork only adds a new class that allows using the library in portrait mode.

When we updated from OpenCV 4_1_0_contrib to 4_3_0_contrib an error appeared on Android 10+ devices, preventing the library from loading and causing the app to crash.

I tried several things, but I don't have experience working with the NDK and all the efforts were unsuccesful, but for what I've seen online it seems that is a problem with the linking step of the library.

Here is the crash trace:

https://gist.github.com/Shiul93/24f50bca063f1f0cef7e8a979cdf8985

This was on a Samsung S9 running android 10, but it can be replicated on AVD with Android 10.

Do you have any clue of what might be causing the error?

Thank you for all your work and have a nice day! :)

Luis Felipe Llamas Luaces · Answer 1 · Wed Jun 23 2021 18:34:07 GMT+0800 (China Standard Time)

Hello!
Do you have any idea about how to approach this problem? We are delaying the release of the app until we fix this and at this point any guidance would be very helpful.

Again, thanks a lot for your work and have a good day!

Nasir · Answer 2 · Fri Jul 02 2021 16:27:28 GMT+0800 (China Standard Time)

Hi @Shiul93

Thank you for reaching out. I will try to check it next week and get back to you. It seems like a linking issues where some symbol isn't found in opencv.

Luis Felipe Llamas Luaces · Answer 3 · Fri Jul 02 2021 17:46:21 GMT+0800 (China Standard Time)

Thank you @nasirky ! I'll stay alert for you response. Also, I tried to use 4_2_0_contrib and it has the same issue. The reason to move form 4.1 to a newer version was a bug on the Aruco module that caused random crashes and it seems to be fixed on 4.2+

Chris Sims · Answer 4 · Fri Jul 09 2021 03:26:47 GMT+0800 (China Standard Time)

I am in a similar position. I am using 4_3_0_contrib, and this same issue arose for me after updating gradle from 4.0 to 4.1, and the gradle wrapper to 6.5. While using classpath "com.android.tools.build:gradle:4.0.2" and distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip , this issue does not occur. @Shiul93, I would be interested to know if downgrading to these versions resolves this particular problem for you as well.

I have been working on a solution for this for a while as well with no luck. Thanks @nasirky for your time!

Luis Felipe Llamas Luaces · Answer 5 · Fri Jul 09 2021 18:07:21 GMT+0800 (China Standard Time)

Hi @critt! I tried downgrading both versions and it seems to work, at least on the AVD simulator.
Thanks a lot for your answer!

Chris Sims · Answer 6 · Fri Jul 09 2021 20:58:31 GMT+0800 (China Standard Time)

@Shiul93 No problem. I would love to figure out the root cause though so we can update these things.

Chris Sims · Answer 7 · Sat Jul 24 2021 05:20:21 GMT+0800 (China Standard Time)

@nasirky any idea what could be behind these build problems with gradle 4.1?

Nasir · Answer 8 · Thu Jul 29 2021 01:14:02 GMT+0800 (China Standard Time)

@critt At the moment, I haven't tried it on 4.1 yet. I think I should be able to try it out next week as we are in the process of setting up an alternative for JCenter and Bintray and we are very much focused there. Thank you for your patience.

Chris Sims · Answer 9 · Thu Jul 29 2021 06:59:01 GMT+0800 (China Standard Time)

@nasirky take your time. This isn't an issue with your library, more just something I'm trying to solve myself and curious if you have any thoughts. Thanks for this project btw, it has made my life much easier and really fills an otherwise frustrating space. Appreciate you guys!

Nasir · Answer 10 · Fri Aug 27 2021 18:42:47 GMT+0800 (China Standard Time)

@critt @Shiul93 If my assumption is correct, you are including the module directly into your project? Are you including the whole Gradle module or just include the java folder?

Chris Sims · Answer 11 · Sat Aug 28 2021 02:13:54 GMT+0800 (China Standard Time)

@nasirky I am including the whole module; I need to use the opencv Java API but I also need to provide opencv c++ dependencies to native code. I figured the .so files are required for the Java files anyways (maybe an incorrect assumption?).

Nasir · Answer 12 · Sun Aug 29 2021 17:50:33 GMT+0800 (China Standard Time)

@critt Yes you do need those files are otherwise your program will fail when linking.

@Shiul93 @critt I downloaded the opencv_4.3.0 contrib and tried it on a sample project. Ran it on an emulator with Android 11 and it worked fine. The only difference is that I am using the latest Gradle plugin versions.

Here are some of the logs

2021-08-29 11:37:11.896 9641-9641/com.quickbirdstudios.opencvexample D/OpenCV: OpenCV loaded successfully! 2021-08-29 11:47:44.667 10225-10225/com.quickbirdstudios.opencvexample D/OpenCV: Version : 4.3.0 2021-08-29 11:47:44.668 10225-10225/com.quickbirdstudios.opencvexample D/OpenCV/StaticHelper: Trying to get library list 2021-08-29 11:47:44.671 10225-10225/com.quickbirdstudios.opencvexample E/OpenCV/StaticHelper: OpenCV error: Cannot load info library for OpenCV 2021-08-29 11:47:44.671 10225-10225/com.quickbirdstudios.opencvexample D/OpenCV/StaticHelper: Library list: "" 2021-08-29 11:47:44.671 10225-10225/com.quickbirdstudios.opencvexample D/OpenCV/StaticHelper: First attempt to load libs 2021-08-29 11:47:44.671 10225-10225/com.quickbirdstudios.opencvexample D/OpenCV/StaticHelper: Trying to init OpenCV libs 2021-08-29 11:47:44.671 10225-10225/com.quickbirdstudios.opencvexample D/OpenCV/StaticHelper: Trying to load library opencv_java4 2021-08-29 11:47:44.680 10225-10225/com.quickbirdstudios.opencvexample D/OpenCV/StaticHelper: Library opencv_java4 loaded 2021-08-29 11:47:44.680 10225-10225/com.quickbirdstudios.opencvexample D/OpenCV/StaticHelper: First attempt to load libs is OK 2021-08-29 11:47:44.705 10225-10225/com.quickbirdstudios.opencvexample I/OpenCV/StaticHelper: General configuration for OpenCV 4.3.0 ====================================

Update:

I am able to reproduce the issue on both 4.3.0 as well as 4.5.3. However, 4.5.2 works fine.
What I understood from the issue is that 4.3.0 and 4.5.3 need to be recompiled with a different flag. 4.5.3 would definitely be recompiled but 4.3.0 might not be

Nasir · Answer 13 · Tue Sep 07 2021 18:07:03 GMT+0800 (China Standard Time)

Fixes

The issue could be reproduced in 4.5.3, so we had to release a new version 4.5.3.0.
The issue doesn't exist in any of the other releases.

Luis Felipe Llamas Luaces · Answer 14 · Tue Sep 07 2021 20:57:55 GMT+0800 (China Standard Time)

Thank you a lot for the update @nasirky! I'll be upgrading to 4.5.3.0 in the next release of our app.

Greetings!

Luis