Peter
Your suggestion is correct. I correct the expression to
(FLMaterializer materializeFromFileNamed: aFileRefence fullName)
Now I get another exception.KeyNotFound: key #'ositive8SmallIntegerClusterJ 4�� 1��� ��+ ���( %? "< 9 �� 6P M ��0 d *��D ''x ! �� 8' not found in SystemDictionary
I think this is a compatibility problem between different Fuel versions.
Johannes