Error cross section

Hi,
I download this file endfb71 and wrote this command in .bashrc.sh.I added screenshot.I’m constantly getting this error, I couldn’t find what I’m missing.

Hi,
Maybe you didnt unzip the file.
hope to help you

Yes, you will need to unzip that tar file. This can be done with the command tar -xvf filename.tar in the command line for example. Then, set your path to the full folder. Also, I’m not sure if this makes a difference, but I think you will want to use the environment variable OPENMC_CROSS_SECTIONS (with an “S”).

I did what you said but it didn’t fix the problem.

Hi, sorry that didn’t immediately work for you. You should manually navigate to the file path and ensure that cross_sections.xml is present.

Hi there

I made a python package to help with downloading and setting up cross sections that can help with this sort of thing. Perhaps this can help

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