<P>
&nbsp; <BR>
hi,<BR>
&nbsp;  i get the following error on running the command<BR>
fix_top_for_charmm.pl -f em.mdp -c b4em.gro -p topol.top <BR>
Use of uninitialized value in multiplication (*) at ./fix_top_for_charmm.pl line 177, &lt;GEN1&gt; <BR>
line 141.<BR>
 I am not being able to make out what the error can be.<BR>
 please help in solving the problem.<BR>
&nbsp; <BR>
thanks in advance.<BR>
<BR>
<BR>

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