[Xplor-nih] %CODBON-ERR: missing bond parameters

[pflueger at charter.net]

I have added hydroxyproline parameters to the protein.par and protein.top.
When I run the generate script (to get an ideal geometry pdb from the psf) I get the error

%CODBON-ERR: missing bond parameters %%%%%%%%%%%%%%%%%%%%%%%%%%
  bond energy constant missing.
  target bond length missing.
  ATOM1: SEGId="    ",  RESId="12  ",  NAME="CG  ",  CHEMical="CP  "
  ATOM2: SEGId="    ",  RESId="12  ",  NAME="OD1 ",  CHEMical="OH  "
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %CODBON-ERR: program will be aborted.

This error is only in xplor-nih. When I run it on xplor 3.8 it works.
What file or parameter do I need to adjust to fix this error in xplor-nih?