# \<Signals.SIGSEGv: 11\>

**URL:** <https://openmc.discourse.group/t/signals-sigsegv-11/803>\
**Category:** User Support\
**Created:** [October 10, 2020, 1:20pm UTC](https://openmc.discourse.group/t/signals-sigsegv-11/803 "2020-10-10T13:20:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![billytnp](https://avatars.discourse-cdn.com/v4/letter/b/ee59a6/32.png) [@billytnp](https://openmc.discourse.group/u/billytnp)\
**Post date:** [October 10, 2020, 1:20pm UTC](https://openmc.discourse.group/t/signals-sigsegv-11/803/1 "2020-10-10T13:20:16Z")

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Dear Group Members,

I’m very new to openmc and the nuclear field. My problem is when I try to run openmc with fixed source calculation mode with an external source from FLUKA and I got an error Command ‘openmc’ died with \<Signals.SIGSEGv: 11\>

What can because of the error?

here is my input  
[python input](https://drive.google.com/file/d/1RI5rcOxpwSNol7FCSE9Y8VX3h4PLiP4P/view?usp=sharing)

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**Author:** ![paulromano](https://yyz2.discourse-cdn.com/free1/user_avatar/openmc.discourse.group/paulromano/32/486_2.png) [@paulromano](https://openmc.discourse.group/u/paulromano)\
**Post date:** [October 14, 2020, 9:32pm UTC](https://openmc.discourse.group/t/signals-sigsegv-11/803/2 "2020-10-14T21:32:52Z")

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This was addressed in another thread: [No error message even Turn on debug](https://openmc.discourse.group/t/no-error-message-even-turn-on-debug/762/2)