Does anyone know how to read undefined attributes in s57 file? I have a .000 file but it contains a few undefined attributes. ESRI S57 viewer is able to read these undefined attributes but fme can't. I tried to modify the s57 attribute csv file under the fme directory by adding the undefined attribute to the list, but I got object class mismatch error when running the translation. Is it possible to read undefined attributes? any suggestions? I'm desperately in need of help to translate these undefined attributes.