Reason for VS.NET 'current breakpoint will not be hit' warning?

Question

Trying to debug a controllers action method, and when I attach to process the debug icon goes hollow and says the 'current breakpoint will not be hit'

But I am doing a response.write at that point and when the page renders it does output the test text.

So that section is indeed being executed, why does debug mode not work?

Answer 1

Your source code may be different than the version of the corresponding process that you are attaching to. Your other process may also be built in release mode, i.e., there is no debug info.