private static AssemblyIdentity GetMissingAssemblyIdentity( ErrorCode code, params object[] arguments ) { var missingAssemblyIdentities = EvaluationContext.GetMissingAssemblyIdentitiesHelper( code, arguments, EvaluationContextBase.SystemCoreIdentity ); return(missingAssemblyIdentities.IsDefault ? null : missingAssemblyIdentities.Single()); }