Android Question CUSTOMLISTVIEW ERROR

[B4A Enthusiast]

** Activity (main) Create, isFirst = false **
** Activity (main) Resume **
java.lang.ArrayIndexOutOfBoundsException: length=1; index=1
customlistview_getsize (java line: 188)
java.lang.NullPointerException: Attempt to invoke virtual method 'int anywheresoftware.b4a.objects.collections.List.getSize()' on a null object reference
at co.ke.softlandict.medbossmobile_1.customlistview._getsize(customlistview.java:188)
at co.ke.softlandict.medbossmobile_1.main._formatpatientsviews(main.java:7626)
at co.ke.softlandict.medbossmobile_1.main._jobdone(main.java:10206)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:213)
at anywheresoftware.b4a.keywords.Common$11.run(Common.java:1178)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:6669)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
java.lang.NullPointerException: Attempt to invoke virtual method 'int anywheresoftware.b4a.objects.collections.List.getSize()' on a null object reference


What could be causing this error? Thanks.

 

[DonManfred]

You are trying to access the 2nd Index from a List which only contains one Item.
1st Item = Index 0
2nd Item = Index 1