This could be due to the service endpoint binding not using the HTTP protocol

Question

I have a WCF Service running fine on my local machine. I put it on the servers, and I am receiving the following error:

An error occurred while receiv

Answer 1

This might not be relevant to your specific problem, but the error message you mentioned has many causes, one of them is using a return type for an [OperationContract] that is either abstract, interface, or not known to the WCF client code.

Check the post (and solution) below

https://stackoverflow.com/a/5310951/74138