OperationContract method '{0}' in type '{1}' does not properly implement the async pattern, as more than one corresponding method '{2}' was found. When using the async pattern, exactly one end method must be provided. Either remove or rename one or more of the '{2}' methods such that there is just one, or set the AsyncPattern property on method '{0}' to false.
Operation is not valid while ItemCollection has no inner collection. ItemCollection is uninitialized or binding on ItemsControl.ItemSource ...
Operation name overloading in a wsdl:portType is disallowed by the Profile. A wsdl:portType in a DESCRIPTION MUST have operations ...
Operation requires a transformation of the image from GDI+ to GDI. GDI does not support images with a width or height greater ...
OperationBehaviorAttribute can only go on the service class, it cannot be put on the ServiceContract interface. Method '{0}' ...
OperationContract method '{0}' in type '{1}' does not properly implement the async pattern, as more than one corresponding ...
OperationContract method '{0}' in type '{1}' does not properly implement the async pattern, as no corresponding method '{2}' ...
OperationDescription '{0}' is invalid because its Messages property contains an invalid number of MessageDescription instances. ...
OperationFormatter encountered an invalid Message body. Expected to find an attribute with name 'type' and value 'null'. ...
OperationFormatter encountered an invalid Message body. Expected to find an attribute with name 'type' and value 'object'. ...