# OpenMC aborts unexpectedly when trying to use plot functions **URL:** \ **Category:** User Support\ **Created:** [January 24, 2024, 7:49pm UTC](https://openmc.discourse.group/t/openmc-aborts-unexpectedly-when-trying-to-use-plot-functions/3862 "2024-01-24T19:49:01Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![cclaro](https://avatars.discourse-cdn.com/v4/letter/c/9de053/32.png) [@cclaro](https://openmc.discourse.group/u/cclaro)\ **Post date:** [January 24, 2024, 7:49pm UTC](https://openmc.discourse.group/t/openmc-aborts-unexpectedly-when-trying-to-use-plot-functions/3862/1 "2024-01-24T19:49:01Z")
deleted and redownloaded openMC using the quick install guide through conda. Code compiles fine but aborts when plotting. Here is the file. [matt\_test.py](https://openmc.discourse.group/uploads/short-url/fdF17A4ZupqwRKW4UfgxXdyjaCO.py) (4.0 KB) this is the error i receive: Traceback (most recent call last): File “/Users/christianandresclaro/code/matt\_test”, line 99, in plot = hex\_universe.plot(pixels=(600, 600), color\_by=‘material’, colors={fuel\_kernel: ‘black’, coolant: ‘yellow’}) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/Users/christianandresclaro/miniconda3/envs/openmc-env/lib/python3.12/site-packages/openmc/universe.py”, line 446, in plot model.plot\_geometry(False, cwd=tmpdir, openmc\_exec=openmc\_exec) File “/Users/christianandresclaro/miniconda3/envs/openmc-env/lib/python3.12/site-packages/openmc/model/model.py”, line 828, in plot\_geometry openmc.plot\_geometry(output=output, openmc\_exec=openmc\_exec) File “/Users/christianandresclaro/miniconda3/envs/openmc-env/lib/python3.12/site-packages/openmc/executor.py”, line 154, in plot\_geometry \_run(args, output, cwd) File “/Users/christianandresclaro/miniconda3/envs/openmc-env/lib/python3.12/site-packages/openmc/executor.py”, line 125, in \_run raise RuntimeError(error\_msg) RuntimeError: OpenMC aborted unexpectedly. ---
**Author:** ![cclaro](https://avatars.discourse-cdn.com/v4/letter/c/9de053/32.png) [@cclaro](https://openmc.discourse.group/u/cclaro)\ **Post date:** [January 24, 2024, 8:04pm UTC](https://openmc.discourse.group/t/openmc-aborts-unexpectedly-when-trying-to-use-plot-functions/3862/2 "2024-01-24T20:04:16Z")
when i run the openmc command in the terminal i get this: | The OpenMC Monte Carlo Code Copyright | 2011-2023 MIT, UChicago Argonne LLC, and contributors License | [License Agreement — OpenMC Documentation](https://docs.openmc.org/en/latest/license.html) Version | 0.14.0 Date/Time | 2024-01-24 15:02:27 OpenMP Threads | 16 Reading settings XML file… Reading materials XML file… Reading geometry XML file… Preparing distributed cell instances… Reading plot XML file… =======================\> PLOTTING SUMMARY \<======================== Plot ID: 1 Plot file: plot\_1.png Universe depth: -1 Plot Type: Slice Origin: 0 0 0 Width: 1.26 1.26 Coloring: Cells Basis: XY Pixels: 250 250 Processing plot 1: plot\_1.png… libpng warning: Application built with libpng-1.4.12 but running with 1.6.39 zsh: segmentation fault openmc ---
**Author:** ![cclaro](https://avatars.discourse-cdn.com/v4/letter/c/9de053/32.png) [@cclaro](https://openmc.discourse.group/u/cclaro)\ **Post date:** [January 26, 2024, 6:37pm UTC](https://openmc.discourse.group/t/openmc-aborts-unexpectedly-when-trying-to-use-plot-functions/3862/3 "2024-01-26T18:37:25Z")
so i was able to get through with a source install but im running into a new issue: Traceback (most recent call last): File “/Users/christianandresclaro/code/matt\_test”, line 100, in hex\_universe.plot(pixels=(600, 600), color\_by=‘material’, colors={fuel\_kernel: ‘black’, coolant: ‘yellow’}) File “/Users/christianandresclaro/miniconda3/lib/python3.10/site-packages/openmc/universe.py”, line 446, in plot model.plot\_geometry(False, cwd=tmpdir, openmc\_exec=openmc\_exec) File “/Users/christianandresclaro/miniconda3/lib/python3.10/site-packages/openmc/model/model.py”, line 823, in plot\_geometry if self.is\_initialized: File “/Users/christianandresclaro/miniconda3/lib/python3.10/site-packages/openmc/model/model.py”, line 160, in is\_initialized import openmc.lib File “/Users/christianandresclaro/miniconda3/lib/python3.10/site-packages/openmc/lib/ **init**.py”, line 32, in \_dll = CDLL(\_filename) File “/Users/christianandresclaro/miniconda3/lib/python3.10/ctypes/ **init**.py”, line 374, in **init** self.\_handle = \_dlopen(self.\_name, mode) OSError: dlopen(/Users/christianandresclaro/miniconda3/lib/python3.10/site-packages/openmc/lib/libopenmc.dylib, 0x0006): tried: ‘/Users/christianandresclaro/miniconda3/lib/python3.10/site-packages/openmc/lib/libopenmc.dylib’ (no such file), ‘/System/Volumes/Preboot/Cryptexes/OS/Users/christianandresclaro/miniconda3/lib/python3.10/site-packages/openmc/lib/libopenmc.dylib’ (no such file), ‘/Users/christianandresclaro/miniconda3/lib/python3.10/site-packages/openmc/lib/libopenmc.dylib’ (no such file) ---
**Author:** ![cclaro](https://avatars.discourse-cdn.com/v4/letter/c/9de053/32.png) [@cclaro](https://openmc.discourse.group/u/cclaro)\ **Post date:** [January 28, 2024, 5:07am UTC](https://openmc.discourse.group/t/openmc-aborts-unexpectedly-when-trying-to-use-plot-functions/3862/4 "2024-01-28T05:07:24Z")
update: had to track down the libopenmc.dylib and move it to the correct file directory. install is now successful. ---
**Author:** ![ema619](https://avatars.discourse-cdn.com/v4/letter/e/82dd89/32.png) [@ema619](https://openmc.discourse.group/u/ema619)\ **Post date:** [May 24, 2024, 11:05pm UTC](https://openmc.discourse.group/t/openmc-aborts-unexpectedly-when-trying-to-use-plot-functions/3862/5 "2024-05-24T23:05:56Z")
Hi, I have the same segmentation fault due to libpng version’s mismatch, could you please tell me how you solved it ? ---
**Author:** ![cclaro](https://avatars.discourse-cdn.com/v4/letter/c/9de053/32.png) [@cclaro](https://openmc.discourse.group/u/cclaro)\ **Post date:** [May 24, 2024, 11:23pm UTC](https://openmc.discourse.group/t/openmc-aborts-unexpectedly-when-trying-to-use-plot-functions/3862/6 "2024-05-24T23:23:03Z")
I went through a source install. For some reason it just wasn’t storing the file in the correct directory. I searched for the file on my computer and just moved it to the directory that it wanted. Solved the issue.