What does “Cannot evaluate expression because the code of the current method is optimized.” mean?

Question

I wrote some code with a lot of recursion, that takes quite a bit of time to complete. Whenever I \"pause\" the run to look at what\'s going on I get:

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Answer 1

You are probably trying to debug your app in release mode instead of debug mode, or you have optimizations turned on in your compile settings.

When the code is compiled with optimizations, certain variables are thrown away once they are no longer used in the function, which is why you are getting that message. In debug mode with optimizations disabled, you shouldn't get that error.