Cannot debug the add-in because 'Outlook' is already running
问题 I have an Outlook 2007 add-in project in Visual Studio 2013. It's been working fine forever, and all of a sudden Visual Studio keeps refusing to debug, with an error message saying Cannot debug the add-in because 'Outlook' is already running. Close 'Outlook' and then run the project again. No, outlook is not running. There is no Outlook process visible in the processes tab of Task Manager. I'm sure restarting the machine would resolve the issue but I am working remotely and cannot reboot for