Android Question Log Error Notification Builder

imgsimonebiliato

Well-Known Member
Licensed User
Hello,
please, can you help me to understand this compile error?
B4X:
** Activity (main) Resume **
** Service (pushservice) Create **
** Service (pushservice) Start **
** Service (pushservice) Start **
** Service (pushservice) Start **
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/app/NotificationManagerCompat;
    at barxdroid.NotificationBuilder.NotificationBuilder.Notify(NotificationBuilder.java:512)
    at simone.b.fortitudovedelago.pushservice._messagearrived(pushservice.java:211)
    at simone.b.fortitudovedelago.pushservice._service_start(pushservice.java:287)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:174)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:158)
    at simone.b.fortitudovedelago.pushservice.handleStart(pushservice.java:68)
    at simone.b.fortitudovedelago.pushservice.onStartCommand(pushservice.java:53)
    at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2894)
    at android.app.ActivityThread.access$2100(ActivityThread.java:151)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1401)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:135)
    at android.app.ActivityThread.main(ActivityThread.java:5254)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.app.NotificationManagerCompat" on path: DexPathList[[zip file "/data/app/simone.b.fortitudovedelago-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
    ... 19 more
    Suppressed: java.lang.ClassNotFoundException: android.support.v4.app.NotificationManagerCompat
        at java.lang.Class.classForName(Native Method)
        at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
        at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
        ... 20 more
    Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available
 

DonManfred

Expert
Licensed User
Without knowing what exactly you are doing there and how it is hartd to give advices.

When did you learn to create Help-request giving enough informations. Maybe a small example project which shows the problem, maybe a DESCRIPTION what you are doing there?

"I go an error", "This is message", "HELP" is not a good way to ask for help!
 

barx

Well-Known Member
Licensed User
Make sure you have an up to date v4 copied into your additional libraries and that you DON'T have another version in the standard b4a lib directory. if that still doesn't sort it. Try copying over the v13 too. Some people have said this sorts this sort of issue. No idea why though as the standard dependancy is v4
 
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