Android Question NullPointerException Error

[jcesar]

I do not know what happened, but suddenly this error start and i dont change nothing in my code to cause this.

** Activity (main) Resume **
--------- beginning of system
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Error occurred on line: 70 (Main)
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.String.toLowerCase(java.util.Locale)' on a null object reference
at anywheresoftware.b4a.objects.streams.File.OpenInput(File.java:204)
at anywheresoftware.b4a.objects.drawable.CanvasWrapper$BitmapWrapper.Initialize(CanvasWrapper.java:516)
at anywheresoftware.b4a.keywords.Common.LoadBitmap(Common.java:1318)
at jc.radios.main._activity_create(main.java:466)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:735)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:360)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:260)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
at jc.radios.main.afterFirstLayout(main.java:104)
at jc.radios.main.access$000(main.java:17)
at jc.radios.main$WaitForLayout.run(main.java:82)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
** Activity (main) Resume **

 

[Sandman]

The problem seems pretty obvious, what is it that you want help with?

 

[MarkusR]

interesting is the code here "Error occurred on line: 70 (Main)"
use the debug modus and a breakpoint, you can step forward and look into the variables.

 

[jcesar]

Thanks for all replies. Problem solved. My mistake.