Howdy, I been using Hugin to create panoramic pictures for years. The automatic create control point button never worked. It always spit out a error about a tool missing so I did it manually. Time consuming to say the least. I recently took a few pictures and got tired of spending all night going through pictures manually setting control points. I decided to try and figure out how to fix it since all the programs and commands should be installed. I went to File, Preferences and then clicked on the Control Point Detectors tab in the new window. If you have autopano-sift-C installed, it should be the default. Highlight it and then click Edit. Find Program and then click the Choose button. The correct setting and path is /usr/bin/autopano-sift-c. The default I think was autopano-noop.sh or autopano-noop. When I googled, I couldn't find that command anywhere so no idea why that is the default setting. It took me a while to figure out where that setting was. Google wasn't much help. Once you have that set up, you should be able to add pictures and then tell it to Create Control Points and it work.
I don't know how few use this program on this list but since I get a lot of help here, I wanted to post this just in case it will help someone who does use this and has the same problem I had with having to do it manually. Trust me, it is much faster and it does a awesome job so far. What normally would take me all night only took a few minutes with the auto tool working plus it creates a lot more control points. Hope this helps someone. Pictures makes memories. :-D I may post a link to some at some point. Dale :-) :-)