java.lang.IllegalStateException: Could not execute method for android:onClick

Stack Overflow | Ted | 2 weeks ago
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    Stack Overflow | 1 year ago | Rich C
    java.lang.IllegalStateException: Could not execute method for android:onClick
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    Looping through 'tablelayout' to return specific button tag

    Stack Overflow | 1 year ago | Rich C
    java.lang.IllegalStateException: Could not execute method for android:onClick
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    You can't use hide() or remove() or many things with NULL values, try checking for NULL before calling this methods.
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    Also, check if you're not using android.support.v4.app.FragmentTransaction with android.app.Fragment and vice-versa
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    App crashing when sending pending intent Alarm Manager

    Stack Overflow | 4 months ago | Superdsg
    java.lang.IllegalStateException: Could not execute method for android:onClick at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:293) at android.view.View.performClick(View.java:4438) at android.view.View$PerformClick.run(View.java:18422) at android.os.Handler.handleCallback(Handler.java:733) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:136) at android.app.ActivityThread.main(ActivityThread.java:5017) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) at dalvik.system.NativeStart.main(Native Method) Caused by: java.lang.reflect.InvocationTargetException at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:515) at android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288) at android.view.View.performClick(View.java:4438)

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    Root Cause Analysis

    1. java.lang.NullPointerException

      Attempt to invoke virtual method 'boolean android.bluetooth.BluetoothAdapter.isDiscovering()' on a null object reference

      at com.example.ted.pawan462.SearchActivity.btnDiscover()
    2. com.example.ted
      SearchActivity.btnDiscover
      1. com.example.ted.pawan462.SearchActivity.btnDiscover(SearchActivity.java:58)
      1 frame
    3. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      1 frame
    4. Android v7
      AppCompatViewInflater$DeclaredOnClickListener.onClick
      1. android.support.v7.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:288)
      1 frame
    5. Android Platform
      ActivityThread.main
      1. android.view.View.performClick(View.java:5204)
      2. android.view.View$PerformClick.run(View.java:21158)
      3. android.os.Handler.handleCallback(Handler.java:739)
      4. android.os.Handler.dispatchMessage(Handler.java:95)
      5. android.os.Looper.loop(Looper.java:148)
      6. android.app.ActivityThread.main(ActivityThread.java:5461)
      6 frames
    6. Java RT
      Method.invoke
      1. java.lang.reflect.Method.invoke(Native Method)
      1 frame
    7. Android
      ZygoteInit.main
      1. com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
      2. com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
      2 frames