# Galaxy-NG installation issue

**URL:** <https://forum.ansible.com/t/galaxy-ng-installation-issue/11020>\
**Category:** Get Help\
**Tags:** galaxy-ng\
**Created:** [November 20, 2024, 2:16pm UTC](https://forum.ansible.com/t/galaxy-ng-installation-issue/11020 "2024-11-20T14:16:00Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ArnoCtr](https://avatars.discourse-cdn.com/v4/letter/a/96bed5/32.png) [@ArnoCtr](https://forum.ansible.com/u/ArnoCtr)\
**Post date:** [November 20, 2024, 2:16pm UTC](https://forum.ansible.com/t/galaxy-ng-installation-issue/11020/1 "2024-11-20T14:16:00Z")

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Hello,  
I’m installing Galaxy-NG using the following documentation ([Installation - Galaxy NG](https://ansible.readthedocs.io/projects/galaxy-ng/en/latest/usage_guide/installation/)), but when I run the “docker run …” command I get the following error in the deployment logs. “ImportError: Could not import ‘galaxy\_ng.app.auth.session.SessionAuthentication’ for API setting ‘DEFAULT\_AUTHENTICATION\_CLASSES’. ModuleNotFoundError: No module named ‘galaxy\_ng.app.auth.session’”  
I’ve tested the installation with several Galaxy-NG versions provided by [quay.io](http://quay.io) and always get the same result.

Thanks in advance for your help.  
Best regards,

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**Author:** ![LDas](https://avatars.discourse-cdn.com/v4/letter/l/6a8cbe/32.png) [@LDas](https://forum.ansible.com/u/LDas)\
**Post date:** [November 27, 2024, 10:51am UTC](https://forum.ansible.com/t/galaxy-ng-installation-issue/11020/2 "2024-11-27T10:51:57Z")

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Running into this issue as well. Did you by chance figure out how to proceed or are you still stuck?

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**Author:** ![Manuel\_AJ](https://sea1.discourse-cdn.com/ansible/user_avatar/forum.ansible.com/manuel_aj/32/5605_2.png) [@Manuel\_AJ](https://forum.ansible.com/u/Manuel_AJ)\
**Post date:** [November 30, 2024, 7:05am UTC](https://forum.ansible.com/t/galaxy-ng-installation-issue/11020/3 "2024-11-30T07:05:10Z")

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Hi,  
from the file `pulp_settings.env` remove the line `PULP_GALAXY_AUTHENTICATION_CLASSES` and galaxy\_ng will start with the default auth classes as it is explained here: [Configuration options - Galaxy NG](https://ansible.readthedocs.io/projects/galaxy-ng/en/latest/config/options/)