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I'm using VS 2013 Ultimate with Update 2 on Win 8.1 x64 and VS won't let me use edit and continue on a simple console application. The console app is set to use .net 4.5.1 and AnyCPU but whenever I try to change code while debugging I get the dreaded "changes to 64-bit applications are not allowed" message box.

I've tried making sure Edit and Continue is enabled in Tools->Options. I've tried flipping it off and on again...no good. I've tried disabling all my VS extensions...didn't make a difference. I've tried resetting to the default VS settings...nope. I've tried repairing my VS installation...nothing. I've tried verifying my .net framework installation...it says my installation is verified but I still have the same problem.

Anyone else seen this?

J. Allen
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  • Duplicate of this question...? http://stackoverflow.com/questions/1498464/changes-to-64-bit-applications-are-not-allowed-when-debugging-in-visual-studio Have a look at this site also: http://blogs.msdn.com/b/habibh/archive/2009/10/12/how-to-edit-code-when-debugging-a-64-bit-application.aspx – 6dev6il6 Jul 01 '14 at 13:58
  • No, question 1498464 is about VS *2008*. x64 Edit and Continue was added in VS 2013 but it's not working on my machine. This is a different question. – J. Allen Jul 01 '14 at 14:05
  • Here is a form from MSDN http://blogs.msdn.com/b/visualstudioalm/archive/2013/06/26/debugging-support-for-64-bit-edit-and-continue-in-visual-studio-2013.aspx – 6dev6il6 Jul 01 '14 at 14:18
  • That's for web sites, this is a console application. – J. Allen Jul 01 '14 at 15:58

2 Answers2

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My crystal ball says that your debugger is using an older debugging engine. Another side effect is that you would have never seen the new method return value debugging feature.

Tools + Options, Debugging, General, untick the "Use Managed Compatibility Mode" option. This option is actually only required to revive C++/CLI debugging.

Hans Passant
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  • You win! I can't tell you how many hours have been sucked up trying to figure out why this wouldn't work. I do work with C++/CLI programs so I'll have to keep in mind when to flip that option on or off, but it's nice to (*finally*) have edit and continue working. – J. Allen Jul 01 '14 at 15:31
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Terribly annoying message "Changes not allowed while unmanaged debugging is enabled" and "Changes to 64 bit applications are not allowed". I was successful many times when I tried the following steps:

  1. Project Properties >> Debug tab >> UNCHECK "Enable native code debugging"
  2. Tools >> Options >> Debugging >> General >> UNCHECK "Use Managed Compatibility Mode"
  3. Tools >> Options >> Debugging >> Edit and Continue >> Check Enable Edit and Continue >> UNCHECK Others
Mike G
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yudhishtirudu Gaddipati
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