I am new to Conn and I am using CONN 17f. I am attempting to merge two projects for the first time. However, when I try to merge two projects, I can't do it and in matlab it says "Mismatched first-level covariate names with project ***" "Mismatched second-level covariate names with project ***". The covariates names are the same between two projects. I would appreciate it if you could give me some advice.

This forum is for MRIcron. It sounds like you should post to the CONN forum:
  https://www.nitrc.org/forum/forum.php?forum_id=1144

I'm sorry to mistake the place to ask about CONN. Thank you for telling me the correct place.