when i excuted this command:

HHEd -A -D -T 1 -H hmm12/macros -H hmm12/hmmdefs -M hmm13 tree.hed triphones1

i have faced with the error[+2662] Assigning structure:can't find tree for b state 2 and terminating program HHed.exe.so what would be the possible cause and the splution.

can anyone help me.