the working directory does not exist C:\Program files (x86)\MIcrosoft visual studio 8\..

Question

Hi, I had created a Shared Add-In for MS Word, Excel and PowerPoint. Everything worked so good, but now i dont know what has happend I just added a reference to my Web Service now when i click on F5 to start debugging i get following error: the working directory does not exist C:\program files (x86)\ Microsoft Visual Studio 8\Common7\ide\ any idea?