yep but I have to do this everytime.
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VS clears your solution according to your project's Build Configuration property. If build configuration of your solution set to "Debug", VS clears assembly files in "/bin/debug" directory. if it is "Release", then it clears "/bin/Release" directory. Some type of projects do not place compiled assemblies in different directories like Debug or Release but in same directory. If VS cannot clear your assemblies somehow this problem occurs.
This problem caused by one project (module) in your solution (OmegaLove.BLL). When you compiled in Release settings everything should be normal. But when you go back to Debug build configuration, and started the solution in debug mode (pressing F5) rises this error. I think, it occurs every time you switched from Release settings to Debug settings. All you have to do is right clicking the project (NOT solution) and CLEAR when you switch from Release build configuration to Debug configuration. Not every time.
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by: Padre_CorleonePosted on 2009-11-07 at 22:15:56ID: 25769574
I have also seen that issue. I solved using this with optimizations diabled.
en-us/libr ary/8tt433 55.aspx
http://msdn.microsoft.com/
also i cleared out my temporary asp.net files., clean solution and rebuild.