System:InvalidOperationException

Hi. I hope this is the right place for this as I am new to this site and new to VS.net. I was wandering if anyone could tell me what it means when an error says that the program that I built in visual basic has encountered a problem and needs to shutdown. I made a program and in visual basic there are no errors and it builds just fine and runs fine in runtime and it even deploys (builds) just fine. I installed it on the same machine with visual studio and I can open and run the program, and it installs just fine on a machine without visual studio, but when I run the program the error comes up about it haveing encountered a problem and needs to shutdown. When I look at the error, it says EventType : clr20r3 P1 : learningyouralphabet.exe P2 : 1.0.2241.25293 P3 : 43f939c3 P4 : learningyouralphabet P5 : 1.0.2241.25293 P6 : 43f939c3 P7 : 1b P8 : e9 P9 : system.invalidoperationexception

Does anyone know what this is from and how to resolve this issue. I have looked at numerous threads and I can not find an answer.

mjcs