Admin primary tabs completely disappeared

Question

I'm building a site in drupal 8, and I pushed my code from local to our development box, and on the development box, the Admin Primary Tabs have completely disappeared. Everywhere. The following is a screenshot of the issue.

The code is version controlled (git), and the databases are identical. There are no outstanding configuration changes to synchronize either. I'm pulling my hair out trying to figure out what the issue is. Is there a settings somewhere I'm missing? I've tried logging out, clearing the cache, different browser. Nothing. I wanted to get a second option before submitting an issue report on drupal.org.

Answer 1

Rebuilding the cache on the development server fixed the issue.

Answer 2

I Don't know why the configuration are identical when they shouldn't, but I think that the admin theme does not have the "Primary tabs" blocks in header, you can check your production env Block layout and see if infact the "Primary tabs" block is there (admin/structure/block/list/seven).

Answer 3

@see Where are the primary and secondary tab blocks?

You probably installed the minimal profile. And although these blocks are part of the Seven theme they only get installed in the standard profile. Sounds a like a bug. As they rather should get installed during the installation of the theme instead of during the profile installation.

Try this:

Use Drush or Drupal console or the built-in Configuration Synchronisation to export your current configuration. Then copy the config files...

core/profiles/standard/config/install/block.block.seven_local_actions.yml core/profiles/standard/config/install/block.block.seven_page_title.yml core/profiles/standard/config/install/block.block.seven_primary_local_tasks.yml core/profiles/standard/config/install/block.block.seven_secondary_local_tasks.yml

... into your config folder - which is probably /sites/default/files/config_[hashcode]/sync/. Then do a config import (using one of those 3 tools above).