AMBER Archive (2006)

Subject: AMBER: leap: syntax error when use source command

From: Dmitry Osolodkin (
Date: Wed Mar 01 2006 - 06:27:47 CST

I am trying to construct a unit containing my protein with ff99 atom types and
ligand with gaff atom types. To do this I run leap with the command
$xleap -s -f $AMBERHOME/dat/leap/cmd/leaprc.ff99
and then load gaff.dat with
>source gaff.dat
But it gives me a plenty of lines "ERROR: syntax error" after each line of
gaff.dat. So i can't save any parameter file.
It's very interesting that this problem appeared _after_ application of
bugfixes. Before application of bugfixes there were no such error. Are there
any solutions? Am i doing something wrong?

Best regards,
Dmitry Osolodkin
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