Today, when a colleague opened the previous ASP.Net project, he reported this error "HTTP/1.0 500 Server Error"
After many inquiries, the reasons are various and the solutions are also various, but none of them are effective.
Finally, I had an idea and tried to re-register Asp.net with IIS. When I opened the project again, ok! The problem was solved.
Steps:
Enter C:WINNTMicrosoft.NETFrameworkv1.1.4322 in command line mode
First execute uninstall aspnet_regiis.exe -u
Then execute registration aspnet_regiis.exe -i