Wcf Error - Could Not Find Default Endpoint Element That References Contract 'Userservice.Userservice'

WCF Endpoint Error: Could not find default endpoint element

This error can arise if you are calling the service in a class library and calling the class library from another project. In this case you will need to include the WS configuration settings into the main projects app.config if its a winapp or web.config if its a web app. how you are testing it ? Did you tried to create client proxy/class using svcutil and then test these methods. it also generates require configuration in output,config file which you can use.

WCF Error - Could not find default endpoint element that references contract 'UserService.UserService'

I had a run in with the same problem. My application was also a Silverlight application and the service was being called from a class library with a custom UserControl that was being used in it.

The solution is simple. Copy the endpoint definitions from the config file (e.g. ServiceReferences.ClientConfig) of the class library to the config file of the silverlight application. I know you'd expect it to work without having to do this, but apparently someone in Redmond had a vacation that day.

Could not find default endpoint element

Having tested several options, I finally solved this by using

contract="IMySOAPWebService"

i.e. without the full namespace in the config. For some reason the full name didn't resolve properly

Could not find default endpoint element that references contract error

RIGHT! Fixed! NOT my ideal solution but I removed the BASEFORM inheritance from all the other forms and extended FORM as per their default and voila! The error vanished. The BaseForm was in the same project as the other file(s) so I couldn't see a problem relating to the <system.serviceModel> sections being in the wrong .config file in the wrong file(s). For some reason, you can instantiate the WCF services at runtime but this fails miserable in design time if in a BaseForm.

Could not find default endpoint element that references contract 'SumServiceReference.IService1' in the ServiceModel client configuration section

Change the service element as:

<service name="Sum_WcfService.Service1" behaviorConfiguration="SumServiceBehavior">
    <endpoint address="" binding="webHttpBinding" contract="Sum_WcfService.IService1" behaviorConfiguration="EndPointBehavior" />
    <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/>
  </service>
</services>

and the client element as:

<client>
<endpoint address="http://localhost/Sum_Wcf/Service1.svc" binding="webHttpBinding"
behaviorConfiguration="EndPointBehavior" contract="SumServiceReference.IService1" name="WebHttpBinding_Sum" />
</client>

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