Hi Charles, On Mon, 22 Jun 2015, Charles Shuller wrote: > Hello all, > > What version of mercury do I need to have installed to build the > current development branch. I've currently got 14.01.1 installed. You'll require a recent rotd -- 14.01.X is too old. I suggest using the current rotd, 2015-06-22. Cheers, Julien.