# Can't sign in as admin user (undefined method \`username' for nil:NilClass)

**URL:** <https://meta.discourse.org/t/cant-sign-in-as-admin-user-undefined-method-username-for-nil-nilclass/68169>\
**Category:** Product Support\
**Created:** [16 Agosto, 2017 17:55 UTC](https://meta.discourse.org/t/cant-sign-in-as-admin-user-undefined-method-username-for-nil-nilclass/68169 "2017-08-16T17:55:38Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![tgxworld](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/tgxworld/32/106117_2.png) [@tgxworld](https://meta.discourse.org/u/tgxworld)\
**Post date:** [17 Agosto, 2017 07:47 UTC](https://meta.discourse.org/t/cant-sign-in-as-admin-user-undefined-method-username-for-nil-nilclass/68169/8 "2017-08-17T07:47:16Z")

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Ic. I got confused when mention the Docker based install which I took as you’re trying to get your production Discourse up and running. I’m personally don’t use Vagrant in development so you’ll have to wait for someone else that does.

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