How to resolve 500.19 error during running Bonobo Git server

1. Run the following command on the prompt:
>%windir%\system32\inetsrv\appcmd unlock config -section:system.webServer/modules
(Reference: http://stackoverflow.com/questions/26633346/bonobo-git-server-http-error-500-19-code-0x80070021)

2-1. Windows 7
Run the following command on the prompt:
>Run %windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -ir with administrator privileges

2-2. Windows 8 or higher
Add the Windows features: IIS -> WWWS -> Application Development Features -> ASP.NET 4.5
(Reference: https://groups.google.com/forum/#!topic/bonobo-git-server/V3UmArM0r4I)