The endpoint configuration portion of the contract "Servicereference1.reportwssoap" could not be loaded because multiple endpoint configurations for the contract were found. Please indicate the preferred endpoint configuration section by name.

Objective

When referencing Websevice, the following error can sometimes occur:

Exception Details: System.InvalidOperationException: Could not load the endpoint configuration portion of the contract as "Servicereference1.reportwssoap" because multiple endpoint configurations for the contract were found. Please indicate the preferred endpoint configuration section by name.

Reason

　　

The WebService interface address is referenced more than once, resulting in more endpoints <endpoint> configuration information in the Web. config configuration file.

How to Solve

　　

Remove the redundant reference configuration information, as shown in:

The diagram already has a <basicHttpBinding> reference, followed by a <customBinding> reference, resulting in two access portals on the following <client> side, so that when the method is called, Multiple endpoint errors occurred. Delete the contents of the red box in the diagram.

The endpoint configuration portion of the contract "Servicereference1.reportwssoap" could not be loaded because multiple endpoint configurations for the contract were found. Please indicate the preferred endpoint configuration section by name.