Here is an sot-23 version I made and have been using for a year now.
MPC1700.fzpz (7.1 KB)
For your errors you need to make the shapes merged and not overlapping. Also you need to have your copper1 inside a group called copper0 (or maybe it is the other way around)(one way works and the other does not). Have a look through mine to see the structure for SMD parts.
Edit: One more thing is to check your DRC rules to see if they are set to allow that tight of clearances.