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Cannot evaluate expression because the code of the current method is optimized

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Problem :

I am using the Visual Studio 2010 in a debug mode and I have "optimize code" unchecked. I am unable to quick watch (or hover on) any variable in my debugger. I encountered following error "Cannot evaluate expression because the code of the current method is optimized".

Even the line like: int i = -3, doing the quick watch on i, I encountered following error "Cannot obtain value of local or argument 'i' as it is not available at this instruction pointer, possibly because it has been optimized away."

Am I missing any setting here ?

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1 Answer

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Solution :

While my project was in the debug mode, my solution was not. So when I changed it, everything worked for me.

OR

I had this same issue when I was using the VS 2010. My solution configuration has a (Debug) selected. I resolved this by simply unchecking a Optimize Code property under a project properties. Follow it  Project (right Click)=> Properties => Build (tab) => uncheck Optimize code

OR

In the VS2013 go to: Tools -> Options -> Debugging -> General and enable the 'Use managed compatibility mode'. This disables your new function evaluation behavior.

Hope above solutions help you in resolving your issue.

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