WCF web service error: The service cannot be activated because it does not support ASP.NET compatibility

Question

I am trying to create a restful wcf web service. When I try to connect to the service through the client I get the following error:

Answer 1

Actually, as per the latest documentation you need to do 2 things,

1.For your service class:

[AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]
[ServiceBehavior(Namespace = "url")]
public class Service : IService
{
}

2.For web.config

<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>

Answer 2

On your main service you could mark your service as:

[AspNetCompatibilityRequirements(
        RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)]

From http://forums.silverlight.net/t/21944.aspx

Answer 3

If someone has a lot of services and services are created using custom ServiceHostFactory, then AspNetCompatibilityRequirementsAttribute can also be set in CreateServiceHost method.

Example:

public class HostFactory : ServiceHostFactory
{
    protected override ServiceHost CreateServiceHost(Type serviceType, Uri[] baseAddresses)
    {
        var host = new ServiceHost(serviceType, baseAddresses);
        //other relevent code to configure host's end point etc
        if (host.Description.Behaviors.Contains(typeof(AspNetCompatibilityRequirementsAttribute)))
        {
            var compatibilityRequirementsAttribute = host.Description.Behaviors[typeof(AspNetCompatibilityRequirementsAttribute)] as AspNetCompatibilityRequirementsAttribute;
            compatibilityRequirementsAttribute.RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed;
        }
        else
        {
            host.Description.Behaviors.Add(new AspNetCompatibilityRequirementsAttribute() { RequirementsMode =AspNetCompatibilityRequirementsMode.Allowed});
        }
        return host;
    }
}

Answer 4

it will work :

you have change this lines in code or add the line in web.config:

<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="false" multipleSiteBindingsEnabled="true" /> 
</system.serviceModel>