# No module named 'openmc' after updating to 0.11

**URL:** <https://openmc.discourse.group/t/no-module-named-openmc-after-updating-to-0-11/493>\
**Category:** User Support\
**Created:** [October 10, 2019, 3:12am UTC](https://openmc.discourse.group/t/no-module-named-openmc-after-updating-to-0-11/493 "2019-10-10T03:12:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![tanzim\_ttanzim](https://avatars.discourse-cdn.com/v4/letter/t/f4b2a3/32.png) [@tanzim\_ttanzim](https://openmc.discourse.group/u/tanzim_ttanzim)\
**Post date:** [October 10, 2019, 3:12am UTC](https://openmc.discourse.group/t/no-module-named-openmc-after-updating-to-0-11/493/1 "2019-10-10T03:12:28Z")

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After updating to openmc 0.11.0 using conda update openmc , I am getting this error.I tried opening a second environment and install openmc there but i am getting same error

![Screenshot_2019-10-10_08-53-42.png](https://global.discourse-cdn.com/free1/uploads/openmc/original/1X/4ca0ff93d0a7cb93ad09b208ea695eba1f136f12.png)

![Screenshot_2019-10-10_08-54-01.png](https://global.discourse-cdn.com/free1/uploads/openmc/original/1X/56c610d1310d6632cf84482cfcd4376a13630173.png)

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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, 2019, 9:53am UTC](https://openmc.discourse.group/t/no-module-named-openmc-after-updating-to-0-11/493/2 "2019-10-14T09:53:09Z")

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Hi Tanzim,

The second error is actually related to the data library you are using. The format of the HDF5 nuclear data libraries has been updated, so for version 0.11.0 you will need to download new libraries. We have pre-generated libraries that are available at [https://openmc.org](https://openmc.org).

Best regards,  
Paul