The file path does not match the file opened. The two must be mapped to the same server location.

1. Open the *. sln file in notepad and change row 3rd to the correct virtual directory.

2. Modify your ProgramChange the path in the file with webinfo as the suffix to the correct virtual directory.
3. the virtual directory name you set must be the same as the original virtual directory name of the project, or. csproj. in the webinfo file, change the urlpath value to the virtual directory name you are currently using. in this case, the name of the virtual path is usually different from that of another machine.