At the risk of being called a doofus, may I point out what seems to be a bug in lammps ?
I am using the 31stMarch2017 lammps version.
In the 'in.heat' example file from the KAPPA folder, if you include a minimization command in the script, I get the error
ERROR: Fix in variable not computed at compatible time (../variable.cpp:1639) when the command fix ave/chunk is being executed. The rest of the script runs fine.
Without the minimization command the error is not observed.
The two of them seem completely unrelated, and I am not sure what is causing it.
Can anybody throw light on what could be wrong ?
The script and the log file is attached to the email.