Error when accessing a WCF service: "This collection already contains an address with scheme http. There can be at most one address per scheme in this collection."

Winhost > Programming, error messages and sample code > ASP.NET

You can resolve this error by changing the web.config file.

If you are using ASP.NET 4.X, add the following lines to your web.config:

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

If you are using ASP.NET 2.0/3.0/3.5, add the following lines to your web.config:

<system.serviceModel> 
     <serviceHostingEnvironment> 
          <baseAddressPrefixFilters> 
               <add prefix="http://www.HostingAccountDomain.com"/> 
          </baseAddressPrefixFilters> 
     </serviceHostingEnvironment> 
</system.serviceModel>

Article ID: 804, Created: 4/21/2010 at 2:01 PM, Modified: 5/19/2017 at 12:07 PM

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Error when accessing a WCF service: "This collection already contains an address with scheme http. There can be at most one address per scheme in this collection."

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