Operation '{0}' of contract '{1}' specifies multiple request body parameters to be serialized without any wrapper elements. At most one body parameter can be serialized without wrapper elements. Either remove the extra body parameters or set the BodyStyle property on the WebGetAttribute/WebInvokeAttribute to Wrapped.
Operation '{0}' in contract '{1}' uses UriTemplate parameters, but also uses a Message parameter. Message and UriTemplate ...
Operation '{0}' in contract '{1}' uses UriTemplate parameters, but also uses a MessageContract parameter. MessageContract ...
Operation '{0}' of contract '{1}' specifies at least one response body parameter that is not a return value of the operation. ...
Operation '{0}' of contract '{1}' specifies MessageContract type '{2}' which has IsWrapped as false but has multiple request ...
Operation '{0}' of contract '{1}' specifies multiple request body parameters to be serialized without any wrapper elements. ...
Operation '{0}' on service instance with identifier '{1}' cannot be performed at this time. Please ensure that the operations ...
Operation '{0}', belonging to contract ('{1}', '{2}') has an XmlSerializerFormatAttribute configured with OperationUse Encoded ...
Operation '{1}' on service instance '{0}' cannot be performed at this time. Another attempt will be made when the service ...
Operation cannot be completed because the command that created the SqlResultSet has been dissociated from the original connection. ...