OK.... A friend is trying to make a blueprint for a section of track he designed. He dislikes forums of any kind. Doesn't like the drama queens. So he asked to me to post this for him.
He gets the following error message (Image enclosed) when he runs a preview after filling in all the fields that apply. He doesn't think he missed any. What was typed in both of us beleive to be correct.
What is this error related to?
Thanks