# Getting the error No fission sites banked on MPI rank 0 when running the example files

**URL:** <https://openmc.discourse.group/t/getting-the-error-no-fission-sites-banked-on-mpi-rank-0-when-running-the-example-files/3617>\
**Category:** User Support\
**Created:** [November 9, 2023, 9:02am UTC](https://openmc.discourse.group/t/getting-the-error-no-fission-sites-banked-on-mpi-rank-0-when-running-the-example-files/3617 "2023-11-09T09:02:49Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![qwer](https://avatars.discourse-cdn.com/v4/letter/q/858c86/32.png) [@qwer](https://openmc.discourse.group/u/qwer)\
**Post date:** [November 9, 2023, 9:02am UTC](https://openmc.discourse.group/t/getting-the-error-no-fission-sites-banked-on-mpi-rank-0-when-running-the-example-files/3617/1 "2023-11-09T09:02:49Z")

</div>

When running the example file pincell.ipynb, I always get the error:No fission sites banked on MPI rank 0. Then I tried other examples, most of them will get the same error. The version of OpenMc is 0.13.3. Does anyone know how to figure it out?  
Thank you very much!