You get this error when building your application in Iron Speed Designer:
Unable to open Web project ‘XXX’. The file path ‘YYY’ does not correspond to the URL ‘ZZZ’. The two need to map to the same server location. HTTP Error 401: Unauthorized
There are several possible causes and solutions to this problem described at these links:
http://www.mredkj.com/vbnet/UnableToOpenWebProject.html
http://www.kbalertz.com/841296/error.message.server.error.message.project.aspx
http://geekswithblogs.net/timh/archive/2005/09/08/53132.aspx
Part VII: Troubleshooting Applications
Application Generation and Compilation Error Messages