Android Question [SOLVED] Layout keeps crashing.

techknight

Well-Known Member
Licensed User
Longtime User
I made some changes to my layout, seems to be ok with no errors in the Designer, but the loadlayout function keeps crashing with this:

B4X:
Error occurred on line: 173 (Main)
java.lang.RuntimeException: java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.reflect.Type[] java.lang.reflect.ParameterizedType.getActualTypeArguments()' on a null object reference
    at anywheresoftware.b4a.keywords.LayoutBuilder.loadLayout(LayoutBuilder.java:170)
    at anywheresoftware.b4a.objects.ActivityWrapper.LoadLayout(ActivityWrapper.java:209)
    at md.bkrm01.main._continueboot(main.java:602)
    at md.bkrm01.main$ResumableSub_update_UpdateComplete.resume(main.java:3399)
    at md.bkrm01.main._update_updatecomplete(main.java:3247)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:144)
    at anywheresoftware.b4a.keywords.Common.CallSub4(Common.java:1082)
    at anywheresoftware.b4a.keywords.Common.CallSubNew(Common.java:1029)
    at eu.dgconsulting.appupdating.cl_appupdate._finito(cl_appupdate.java:497)
    at eu.dgconsulting.appupdating.cl_appupdate$ResumableSub_ReadWebVN.resume(cl_appupdate.java:1039)
    at anywheresoftware.b4a.BA.checkAndRunWaitForEvent(BA.java:267)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:207)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:193)
    at anywheresoftware.b4a.keywords.Common$14.run(Common.java:1760)
    at android.os.Handler.handleCallback(Handler.java:873)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:215)
    at android.app.ActivityThread.main(ActivityThread.java:6939)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:870)
Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'java.lang.reflect.Type[] java.lang.reflect.ParameterizedType.getActualTypeArguments()' on a null object reference
    at anywheresoftware.b4a.keywords.LayoutBuilder.loadLayoutHelper(LayoutBuilder.java:408)
    at anywheresoftware.b4a.keywords.LayoutBuilder.loadLayoutHelper(LayoutBuilder.java:453)
    at anywheresoftware.b4a.keywords.LayoutBuilder.loadLayout(LayoutBuilder.java:148)
    ... 25 more

I attached the layout.

Thoughts?
 

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stevel05

Expert
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Longtime User
It loads OK in an empty project, check that any Global definitions in the Module / Class are appropriate.
 
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