Android Question External Library error after upgrade to AndroidX

Discussion in 'Android Questions' started by sgt, Aug 13, 2019 at 10:28 PM.

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  1. sgt

    sgt Member Licensed User

    Hi just wanting to see if anyone can point me in the right direction to resolve the following issue.

    I have a external library that I have written a simple wrapper for Google MLKit for text recognition. It was working before installing Android sdk 28 so I suspect its a dependency issue that i am missing with updated firebase vision components. The old one was using version 18.0.0 of the library where it now is using version 22.0.0 The error occurs in the library on

    Code:
    FirebaseVisionTextRecognizer detector = FirebaseVision.getInstance().getOnDeviceTextRecognizer();
    and the error is (Which is similar to thread https://www.b4x.com/android/forum/threads/firebase-ml-vision-lib-running-crash.107972/#post-678002)

    Any help appreciated, Thanks.

    Code:
    Error occurred on line: 198 (Camera)
    java.lang.NullPointerException: Attempt 
    to invoke virtual method 'java.lang.Object com.google.firebase.ml.common.internal.zzd.get(java.lang.Object)' on a null object reference
        at com.google.firebase.ml.common.internal.zzm.zza(com.google.firebase:firebase-ml-common@@20.0.1:24)
        at com.google.android.gms.internal.firebase_ml.zzrj.<init>(com.google.firebase:firebase-ml-vision@@
    22.0.0:5)
        at com.google.android.gms.internal.firebase_ml.zzrg.<init>(com.google.firebase:firebase-ml-vision@@
    22.0.0:10)
        at com.google.android.gms.internal.firebase_ml.zzrg.zze(com.google.firebase:firebase-ml-vision@@
    22.0.0:7)
        at com.google.firebase.ml.vision.text.FirebaseVisionTextRecognizer.zza(com.google.firebase:firebase-ml-vision@@
    22.0.0:9)
        at com.google.firebase.ml.vision.FirebaseVision.getOnDeviceTextRecognizer(com.google.firebase:firebase-ml-vision@@
    22.0.0:17)
        at tytech.mlkit.ocr.TextRecongition.recognizeText(TextRecongition.java:
    63)
        at tytech.mlkit.ocr.TextRecongition.ocrImage(TextRecongition.java:
    51)
        at java.lang.reflect.Method.invoke(Native Method)
        at anywheresoftware.b4a.shell.Shell.runVoidMethod(
    Shell.java:777)
        at anywheresoftware.b4a.shell.Shell.raiseEventImpl(
    Shell.java:354)
        at anywheresoftware.b4a.shell.Shell.raiseEvent(
    Shell.java:255)
        at java.lang.reflect.Method.invoke(Native Method)
        at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:
    144)
        at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:
    1083)
        at anywheresoftware.b4a.keywords.Common.CallSubNew2(Common.java:
    1038)
        at tytech.financenow.cameraexclass._camera_picturetaken(cameraexclass.java:
    400)
        at java.lang.reflect.Method.invoke(Native Method)
        at anywheresoftware.b4a.shell.Shell.runMethod(
    Shell.java:732)
        at anywheresoftware.b4a.shell.Shell.raiseEventImpl(
    Shell.java:351)
        at anywheresoftware.b4a.shell.Shell.raiseEvent(
    Shell.java:255)
        at java.lang.reflect.Method.invoke(Native Method)
        at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:
    144)
        at anywheresoftware.b4a.BA$
    1.run(BA.java:335)
        at android.os.Handler.handleCallback(Handler.java:
    873)
        at android.os.Handler.dispatchMessage(Handler.java:
    99)
        at android.os.Looper.loop(Looper.java:
    214)
        at android.app.ActivityThread.main(ActivityThread.java:
    7037)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:
    494)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:
    965)
     
  2. Erel

    Erel Administrator Staff Member Licensed User

    It doesn't look related to AndroidX change.

    Maybe Google instructions have changed and you are missing something.
     
  3. DonManfred

    DonManfred Expert Licensed User

    if you find a solution: please post it. I am facing the same problem with my wrapper.
     
  4. ppgirl

    ppgirl Member Licensed User

    Hello @sgt @DonManfred , Could you try use B4A 9.30 and use Jetifier ?
     
  5. DonManfred

    DonManfred Expert Licensed User

    I AM using 9.3 and did run jetifier.
     
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