Android Question java.lang.RuntimeException in BleManager2.WriteData

Exception java.lang.RuntimeException:
at anywheresoftware.b4a.keywords.Common$14.run (Common.java:1803)
at android.os.Handler.handleCallback (Handler.java:959)
at android.os.Handler.dispatchMessage (Handler.java:100)
at android.os.Looper.loopOnce (Looper.java:257)
at android.os.Looper.loop (Looper.java:342)
at android.app.ActivityThread.main (ActivityThread.java:9634)
at java.lang.reflect.Method.invoke
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:619)
at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:929)
Caused by java.lang.RuntimeException:
at anywheresoftware.b4a.objects.BleManager2.WriteData (BleManager2.java:395)
at anywheresoftware.b4a.objects.BleManager2.WriteData (BleManager2.java:386)
at fg.MasterOfRegolarity.clsbluetoothble._vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv0 (clsbluetoothble.java:598)
at fg.MasterOfRegolarity.clsbluetoothble$ResumableSub_btManager_DataAvailable.resume (clsbluetoothble.java:450)
at anywheresoftware.b4a.keywords.Common$14.run (Common.java:1801)

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Public Sub GetBluetoothVersion
    Dim strTmp As String = "3v"
    'Log("GetBluetoothVersion=" & strTmp)
    If btService > -1 Then
        btManager.WriteData(ConnectedServices.Get(btService), charId, strTmp.GetBytes("UTF8"))
    End If
End Sub

at anywheresoftware.b4a.objects.BleManager2.WriteData (BleManager2.java:395)
at anywheresoftware.b4a.objects.BleManager2.WriteData (BleManager2.java:386)

Click to expand...