android / android/codelab-mlkit-android

Fatal Exception: java.lang.UnsatisfiedLinkError

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#60 2 comments 2 reactions 0 assignees View on GitHub
Dominant language
Kotlin
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Description

Using [MLKit's Android Barcode library (Bundled, v3)](https://developers.google.com/ml-kit/vision/barcode-scanning/android)
`com.google.mlkit:barcode-scanning:17.0.1`
From the limited users(that I currently have), I am experiencing the following crash on Firebase (repetitive):
1. Huawei 9A (MOA-LX9N)
2. Huawei Y9A (FRL-L22)
```
Fatal Exception: java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/data/app/qrcodereader.barcodescanner.qrscanner.barcodereader.qrcode.barcode.qr.scanner.reader-28BTds1gUmGI_6g_4tY4uw==/base.apk"],nativeLibraryDirectories=[/data/app/qrcodereader.barcodescanner.qrscanner.barcodereader.qrcode.barcode.qr.scanner.reader-28BTds1gUmGI_6g_4tY4uw==/lib/arm64, /system/lib64, /hw_product/lib64, /system/product/lib64]]] couldn't find "libbarhopper_v3.so"
at java.lang.Runtime.loadLibrary0(Runtime.java:1067)
at java.lang.Runtime.loadLibrary0(Runtime.java:1007)
at java.lang.System.loadLibrary(System.java:1668)
at com.google.android.libraries.barhopper.BarhopperV3.(BarhopperV3.java:5)
at com.google.mlkit.vision.barcode.bundled.internal.zza.zzc(zza.java:36)
at com.google.android.gms.internal.mlkit_vision_barcode_bundled.zzbk.zza(zzbk.java:36)
at com.google.android.gms.internal.mlkit_vision_barcode_bundled.zzb.onTransact(zzb.java:20)
at android.os.Binder.transact(Binder.java:921)
at com.google.android.gms.internal.mlkit_vision_barcode.zza.zzc(zza.java:2)
at com.google.android.gms.internal.measurement.zzbm.zzc$bridge(zzbm.java:2)
at com.google.android.gms.internal.mlkit_vision_barcode.zznu.zze(zznu.java:3)
at com.google.mlkit.vision.barcode.internal.zzl.zza(zzl.java:3)
at com.google.mlkit.vision.barcode.internal.zzi.zzc(zzi.java:1)
at com.google.mlkit.vision.common.internal.MobileVisionBase.zza(MobileVisionBase.java:18)
at com.google.mlkit.vision.common.internal.zzd.call(zzd.java:18)
at com.google.android.gms.measurement.internal.zzfh.call$bridge(zzfh.java:18)
at com.google.mlkit.common.sdkinternal.ModelResource.zza(ModelResource.java:28)
at com.google.mlkit.common.sdkinternal.zzl.run(zzl.java:28)
at com.google.android.gms.measurement.internal.zzjf.run$bridge(zzjf.java:28)
at com.google.mlkit.common.sdkinternal.zzp.run(zzp.java:137)
at com.google.android.gms.common.api.internal.zacm.run$bridge(zacm.java:137)
at com.google.mlkit.common.sdkinternal.MlKitThreadPool.zze(MlKitThreadPool.java:2)
at com.google.mlkit.common.sdkinternal.MlKitThreadPool.zzc(MlKitThreadPool.java:2)
at com.google.mlkit.common.sdkinternal.zzi.run(zzi.java:2)
at com.google.mlkit.common.sdkinternal.zzi.run$bridge(zzi.java:2)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at com.google.mlkit.common.sdkinternal.MlKitThreadPool.zzd(MlKitThreadPool.java:4)
at com.google.mlkit.common.sdkinternal.zzj.run(zzj.java:4)
at com.google.mlkit.common.sdkinternal.zzi.run$bridge(zzi.java:4)
at java.lang.Thread.run(Thread.java:929)
```

I am not experienced enough with ndk, but I found a [stackoverflow link](https://stackoverflow.com/questions/27186726/java-lang-unsatisfiedlinkerror-dalvik-system-pathclassloader) that might be useful.

Can you please look into this, if it is a OEM device specific error or a bug with mlkit itself?...
Thanks

Contributor guide

Open the contributing guide

Research direction

Start with the com.google.mlkit:barcode-scanning:17.0.1 dependency and the stack trace entry point at BarhopperV3, then reproduce on the Huawei 9A and Y9A devices named in the report. Compare the bundled native library packaging and determine whether the missing libbarhopper_v3.so is OEM-specific or an ML Kit issue; done means a validated fix or workaround and documented cause.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, kotlin
Domain
computer-vision, mobile-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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