Property with Name '{0}', referred to by child TypeDescriptor with Name '{1}' and Id '{2}' on Parameter with Name '{3}' on ...

Property with Name '{0}', referred to by child TypeDescriptor with Name '{1}' and Id '{2}' on Parameter with Name '{3}' on Method with Name '{4}' on Entity (External Content Type) with Name '{5}' in Namespace '{6}' cannot be accessed. Type '{7}' has a bad implementation of '{8}'.