[openmc-users] Error processing cros_sections.xml file

User Support
1

Make sure that the your environment variable is set to the path to the cross_sections.xml file itself, not the directory that contains it. Doing the latter will result in the error that you are seeing.

Best,
Paul

2

I’m still having some difficulty. Any suggestions would be appropriated. In .bashrc, I’ve set ‘OPENMC_CROSS_SECTIONS=/home/krausjw/OpenMC/data/endfb71_hdf5/cross_sections.xml’ When I echo $OPENMC_CROSS_SECTIONS from a command prompt I see the path to the file as specified. However, when I run OpenMC, I get this error message:

ERROR: No cross_sections.xml file was specified in materials.xml, settings.xml,
or in the OPENMC_CROSS_SECTIONS environment variable. OpenMC needs such
a file to identify where to find ACE cross section libraries. Please
consult the user’s guide at http://mit-crpg.github.io/openmc for
information on how to set up ACE cross section libraries.
ERROR STOP

Thanks,
Jim

3
  • would be appreciated
4

Hello James,
In bashrc file, add your data library path location like …

export OPENMC_CROSS_SECTIONS=’/home/krausjw/OpenMC/data/endfb71_hdf5/cross_sections.xml’
export OPENMC_CROSS_SECTIONS

Best wishes