How to resolve an ASSERTION ERROR in visual c++ MFC application?

i am currently making a game using an MFC application in Visual c++. i had a mistake of deleting a dialog box and now the program wont run. it says:





Debug assertion failed


Program:....


file:dlgdata.cpp


line:44

How to resolve an ASSERTION ERROR in visual c++ MFC application?
May be you can contact a VC++ expert live at website like http://askexpert.info/ .