ValueError "User.config" must be a "UserConfig" instance

[MakoWish]

I would appreciate some help with this. A colleague at work pointed me to NetBox, and I wanted to test it out. I am attempting to get up and running in my lab, and at the point in the documentation where we test via python3 manage.py runserver 0.0.0.0:8000 --insecure, I get a login page, but after entering the credentials I set, I get the error below.

Server Error

There was a problem with your request. Please contact an administrator.

The complete exception is provided below:

<class 'ValueError'>

Cannot assign "<netbox.config.Config object at 0x7ace1d5d3680>": "User.config" must be a "UserConfig" instance.

Python version: 3.12.3
NetBox version: 4.1.3
Plugins: None installed

If further assistance is required, please post to the NetBox discussion forum on GitHub.
Home Page

[KriKrixs]

Hi @MakoWish

I had the same issue and resolved it by deleting the database in Postgre and recreate it using the documentation.

[termark]

Thank you, this worked for me as well

[MakoWish]

Thank you, @KriKrixs . Since this was a new build in a lab environment, I just blew the entire VM away and started from scratch last night. I am no longer getting that error. Now... to get LDAP authentication to work! Hahaha

[KriKrixs]

Good luck mate 😂, have a nice day !

[MakoWish]

I actually got it working just a few minutes later. I had mistyped a DN. I should have copy/pasted it in the first place.

[lgt-bu]

Hi, I recently upgraded from 3.6.x to 4.1.6 (i did requisite path from 3.6.x to 3.7.8, then onwards to 4.1.6) and since then, adding a new user we get that message above when they try to login.

On our system:

Server Error

There was a problem with your request. Please contact an administrator.

The complete exception is provided below:

<class 'ValueError'>

Cannot assign "<netbox.config.Config object at 0x7f41c868cdf0>": "User.config" must be a "UserConfig" instance.

Python version: 3.10.0
NetBox version: 4.1.6
Plugins: 
  netbox_reorder_rack: 1.1.3
  netbox_topology_views: 4.1.0

If further assistance is required, please post to the [NetBox discussion forum](https://github.com/netbox-community/netbox/discussions) on GitHub.
[Home Page](https://netbox.ourserver.uk)

I'm not confident with a resolution of just starting again. Nor with the idea that I just delete the database. Where is that solution and how safe? We are not using the ldap plugin. It's just local accounts on the box.