Error on page load With ListView Widgets

Good day,   I recently upgraded my medix to Medix Studio Pro v8.13.0 and I get this error when I open a page view containing ListView widgets, and there is no specific error message. The following is the error message I get:  “Did not expect an argument to be undefined Error: Did not expect an argument to be undefined”   Thanks
1 answers

Somehow in the recent versions of Mx I too have these errors. What helps in my case is to rename the Listviews to an more unique value than the default Listview1 or Listview2 and specifically differentiate between pages because sometimes Mx loses track with object types when navigating the stack.