I followed the steps in the post here: OpenMC cross_section.xml problem but I still got the same error, I’m not sure what I did wrong, here’s what I typed in the terminal, I still get the error no cross sections. xml file was specified, I downloaded ENDF/B-VII.1 and my openmc version is 0.13.1, I’m…

here’s the error I get: [image]

I tried changing the location of the downloaded folder im openmc-env and it still gives me the error that the file in that location doesn’t exist: [image] I also tried opening it in the terminal: [image] openmc.plot_geometry(output=False) I also get these messages and I’m not sure I quite unde…

I updated openmc to 0.13.2 to try the other fix but I got the same error: [image]

@Pranto Could you help, please?

I tried the fix in here and it seems to work, I finally got a different error: GitHub - openmc-data-storage/openmc_data_downloader: A Python package for downloading h5 cross section files for use in OpenMC. [image]

Hi @Dalia , Can you specify what fix you used from the data downloader? Tagging @shimwell here, the author of that package. -Patrick

I used the lines in this GitHub source: GitHub - openmc-data-storage/openmc_data_downloader: A Python package for downloading h5 cross section files for use in OpenMC. made by @Shimwell and I also needed to include missing nuclides: openmc_data_downloader -l TENDL-2019 -e U Li Na Si Fe O H B Zr Wit…

Error no cross section.xml file was specified

User Support

Shimwell November 1, 2022, 4:20pm 8

Just to mention that issue got solved over in another thread with this comment Could not find nuclide U235 - #8 by Shimwell

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Error no cross section.xml file was specified

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