HTTP Error 500.0 - ANCM In-Process Handler Load Failure

[Abdalrzakalsouki]

Hello everyone,
I build an ASP .NET app and it was working well but after making some new futures I started to got this error:
HTTP Error 500.0 - ANCM In-Process Handler Load Failure
in addition to unusual visual studio report where it indicate that there is some errors when I start debugging even that there is no errors shown in the Error list
I will be thankful for any suggest