TypeDescriptor with Name '{0}' (found in Parameter with Name '{1}', Method with Name '{2}', Entity (External Content Type) ...

TypeDescriptor with Name '{0}' (found in Parameter with Name '{1}', Method with Name '{2}', Entity (External Content Type) with Name '{3}' and Version '{4}' in Namespace '{5}') refers to an Identifier with Name '{6}' of Type '{7}' which is supposed to exist on Entity with Name '{8}' in Namespace '{9}'. This Identifier cannot be found.