Could not load type 'System.ServiceModel.Activation.HttpModule' from assembly 'System.ServiceModel

Question

I\'m running my Web Project in IIS.

It is a 4.0 Framework APP.

I have a Service.svc and I get this error when I run my Application.

\"

Answer 1

You might changed the IIS features settings.The easy steps to resolve by open command prompt with run as administrator(For Windows Server 2008) and run the command C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -iru this will set up ASP.Net 4.0 ,Then Reset the IIS by the command iisreset

References: https://support.plesk.com/hc/en-us/articles/213392249-ASP-website-shows-error-Could-not-load-type-System-ServiceModel-Activation-HttpModule-from-assembly