12d Model

[quote="Adnan Obeid"]I'm trying to follow the manual, but I've hit a speed bump. On page 135 when it asks to reduce the function an error occurs telling me that item no. 9's colour has an invalid value of 'vis ballast' from the map data. Can anyone help?[I'm using version 12 C1t]

I'm trying to follow the manual, but I've hit a speed bump. On page 135 when it asks to reduce the function an error occurs telling me that item no. 9's colour has an invalid value of 'vis ballast' from the map data. Can anyone help?