PROBLEM
If you start using \"Microsoft Internet Information Services Express (IIS)\" from \"Microsoft Visual Studio (VS)\" you may get when you run
SOLUTION
This means that you are missing the right for using it. Create it with Netsh Commands for Hypertext Transfer Protocol > add urlacl.
1) Open "Command Line Interface (CLI)" called "Command shell" with Win+R write "cmd"
2) Open CLI windows like administrator with mouse context menu on opened windows or icon "Run as administrator"
3) Insert command to register url
netsh http add urlacl url=http://{ip_addr}:{port}/ user=everyone
NOTE:
netsh http delete urlacl url=http://{ip_addr}:{port}/