Exception "Object of type ApplicationModule is not found"

Hi
This error happens when you make a nested a pplication module.
to solve this error go to the page definition of your page or fragments and search for "Binds=" as follow



  <iterator RangeSize="25" DataControl="HrmsAppModuleDataControl"
              id="EmpVacationsViewIterator" Binds="Root.VacAppModule.EmpVacationsView"/>
  </executables>


then open the property pallet  and remove the value of "binds" property then click edit and select your view object from the iterator, for example see this picture


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