the source file is different from when the module was built

Question

This is driving me crazy.

I have a rather large project that I am trying to modify. I noticed earlier that when I typed DbCommand, visual studio did

Answer 1

Unload the project that has the file that is causing the error.

Reload the project.

Fixed

Answer 2

My solution:

I had included an existing project from a different solution in a new solution file.

I did not notice that when the existing project was rebuilt, it was putting the final output into the NEW solution's output directory. I had a linker path defined to look into the OLD solution's output directory.

Switching my project to search in the new solution's output directory fixed this issue for me.

Answer 3

I was just having this same problem, my projects were all in the same solution so they were using Project to Project references, so as one changed the others should have been updated. However it was not the case, I tried to build, rebuild, close VS2010, pulled a new copy from our source control. None of this worked, what I finally ended up trying was right clicking on the project and rebuilding each project individually. That updated the .dlls and .pdb files so I could debug through.

The issue here is that your dll and or your pdb files are not in sync.

Answer 4

I also experienced that. I just open the obj folder on the project and then open the debug folder delete the .pdb file and that's all.

Answer 5

I was using Visual Studio 2013 and I had an existing project under source control.
I had downloaded a fresh copy from source control to a new directory.
After making changes to the fresh copy, when building I received the error in question.

My solution:
1) Open Documents\IISExpress\config\applicationhost.config
2) Update virtualDirectory node with directory to the fresh copy and save.

Answer 6

Debug-> start without debugging.

This option worked for me. Hope this helps!