VB.NET Debug Button Disabled

I am using Visual Studio Ultimate. I have made a fairly long program which worked fine. One day I find that the debug button 开发者_开发知识库was disabled and both the build and rebuild buttons do not work. I have tried opening the same project files in Visual Basic Express 2010 but still, the sane problem.

I don't really want to have to reinstall but I'm not even sure that that will fix the problem. Thanks in advance.

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Is there a startup project? One project in the Solution Explorer should be in bold. Right-click the executable project and select "Set as StartUp Project". Additionally, open the Project Properties, Application tab, and ensure Application type is either "Windows Forms Applications" or "Console Application".

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Did you try to reset the setting of your Visual Studio Ultimate?

Type: (In your visual studio command prompt) devenv /resetsettings

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Buttons disabled for just that program, or all programs?

I vaguely remember having a similar problem many years ago. Re-creating the project and solution files fixed it, I think (ie. create a new solution/project and import all the .vb files).

Another thing to check would be whether the compiled files have become read-only. Maybe VB.NET can't delete the old .EXEs

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You need to build a test application. I think thats more difficult then making the application itself. In my personal opinion, your better off building the whole software in a notepad.

http://msdn.microsoft.com/en-us/library/ms182532.aspx