Sun tracker for sketchup 15, does one exist?

cerebral meltdown used to make a good one that i used in older sketchup versions
can’t seem to make it work for sketchup 15

Which one do you mean? If you can be more specific, it can be checked and possibly fixed if necessary.
I just went to that site and installed Sketchup Sun Position Plugin and it seems fine in SU2015.
I get this.