App crashes on loading library after upgrade to 1.6.2 and apriltag 1.1.1

[IronReignRobotics]

We are trying to upgrade to EOCV 1.6.2 with the 8.1.1 ftcsdk in Android Studio Electric Eel. The app crashes as soon as the vision pipeline tries to load. There are no warnings on the driver station. Here are the relevant log lines:

--------- beginning of crash 03-06 19:07:43.816 2538 2692 E AndroidRuntime: FATAL EXCEPTION: OpModeThread 03-06 19:07:43.816 2538 2692 E AndroidRuntime: Process: com.qualcomm.ftcrobotcontroller, PID: 2538 03-06 19:07:43.816 2538 2692 E AndroidRuntime: java.lang.UnsatisfiedLinkError: dlopen failed: cannot locate symbol "_ZN2cv3MatD1Ev" referenced by "/data/app/com.qualcomm.ftcrobotcontroller-1/lib/arm/libEasyOpenCV.so"... 03-06 19:07:43.816 2538 2692 E AndroidRuntime: at java.lang.Runtime.loadLibrary0(Runtime.java:989) 03-06 19:07:43.816 2538 2692 E AndroidRuntime: at java.lang.System.loadLibrary(System.java:1562) 03-06 19:07:43.816 2538 2692 E AndroidRuntime: at org.openftc.easyopencv.OpenCvCameraBase.(OpenCvCameraBase.java:965) 03-06 19:07:43.816 2538 2692 E AndroidRuntime: at org.openftc.easyopencv.OpenCvCameraFactoryImpl.createWebcam(OpenCvCameraFactoryImpl.java:98) 03-06 19:07:43.816 2538 2692 E AndroidRuntime: at org.firstinspires.ftc.teamcode.robots.taubot.vision.provider.AprilTagProvider.initializeVision(AprilTagProvider.java:57) 03-06 19:07:43.816 2538 2692 E AndroidRuntime: at org.firstinspires.ftc.teamcode.robots.taubot.PowerPlay_6832.init(PowerPlay_6832.java:227)

any ideas?

Thanks.

[Windwoes]

Well that is..... puzzling :pig_nose:

The key bit here seems to be

dlopen failed: cannot locate symbol "_ZN2cv3MatD1Ev" referenced by
"/data/app/com.qualcomm.ftcrobotcontroller-1/lib/arm/libEasyOpenCV.so"...

The symbol looks to be an OpenCV one.... are you using the default transitive dependency on 'org.openftc:opencv-repackaged-bundled-dylibs:4.5.3-C', or are you perhaps using a custom built version of the OpenCV native libraries?

[Windwoes]

Also what hardware are you running on?

[IronReignRobotics]

We used to run a custom build long ago, but we've been running EasyOpenCV for the last two seasons. When we revert to 1.5.2 the pipeline works.

Here's what the module dependencies look like:

This is running on a chub with current OS and firmware, and with a Logitech C920 webcam

[IronReignRobotics]

TeamCode build.gradle looks like:

apply from: '../build.common.gradle' apply from: '../build.dependencies.gradle'

android { namespace = 'org.firstinspires.ftc.teamcode'

packagingOptions {
    jniLibs.useLegacyPackaging true
}

}

dependencies { implementation project(':FtcRobotController') implementation 'org.openftc:easyopencv:1.6.2' implementation 'org.openftc:apriltag:1.1.1' annotationProcessor files('lib/OpModeAnnotationProcessor.jar') implementation 'org.apache.commons:commons-math3:3.6.1' implementation 'com.acmerobotics.roadrunner:core:0.5.6' }

[Windwoes]

Can you test 1.5.3?

[IronReignRobotics]

Exact same problem with 1.5.3 as with 1.6.2

[IronReignRobotics]

Happy to setup a screenshare of the dev system if that helps.

[Windwoes]

That's very strange because I know multiple people using the latest versions without issue. I might build you an APK that I can prove works on my end and see what happens for you.

[Windwoes]

Please run adb shell pm uninstall com.qualcomm.ftcrobotcontroller

Then try this APK: https://drive.google.com/file/d/14qeWI9PhAZG9I9SZmQderh9UJf-5ARtM/view?usp=share_link

I tested that this APK runs correctly on a Control Hub with a C920 camera.

[Windwoes]

Oh and if that APK still crashes, then I'd probably suggest trying to factory reset the control hub.

[Windwoes]

@IronReignRobotics Were you able to test?

[Windwoes]

Closing due to no response. Feel free to re-open if you still have this issue.