Some initial NEURON scripts supplied by Ruchi Parekh and Michele Ferrante giving the the error:
nrniv: procedure too big
 in EC2-609291-4.CNG.hoc near line 1446
   pt3dadd(-2852.8,1823.5,93.36,0.22)
                        ^
        xopen("EC2-609291-4.CNG.hoc")

i.e. generated NEURON code has too big a procedure due to v long section (dendrite 11).