Once module is installed, cannot be uninstalled [#2711171]

Installed the dev module to my D8 dev site (8.1.0) to try it out. After deciding i didn't want to use the module anymore, i attempted to uninstall the module only to be presented with an error 500 on the module uninstall page.

Checking apache logs this is the output:

Cannot instantiate interface Drupal\\Core\\Cache\\CacheBackendInterface in /core/lib/Drupal/Component/DependencyInjection/Container.php on line 268

Not sure what this module has done, but its made any other modules uninstallable with it.

Any quick fixes?

Comments

Comment #1

21 April 2016 at 21:55

MattMeadows created an issue. See original summary.

Comment #2

MattMeadows CreditAttribution: MattMeadows commented 21 April 2016 at 22:00

Issue summary:

View changes

Comment #3

kclarkson CreditAttribution: kclarkson commented 18 July 2016 at 05:48

after install I received the following error.

Call to undefined function variable_del() in modules/admin_menu/admin_menu.install, line 22

I commented out the lines but that was given the error

Cannot instantiate interface
Drupal\Core\Cache\CacheBackendInterface in
core/lib/Drupal/Component/DependencyInjection/Container.php,
line 268

After deleting the module and doing a CR the error went away.

Comment #4

awasson CreditAttribution: awasson commented 16 July 2016 at 04:35

There is a good howto for uninstalling it here: https://www.drupal.org/node/2259267#comment-11184597

Further to that I was receiving an error/warning that wouldn't go away, indicating that Drupal was looking for a node_counter table which was a remnant from the old Drupal 7 version of Admin Menu. I simply added a new empty table that looked like the Drupal 7 node_counter table. More info about that here: https://www.drupal.org/node/2259267#comment-11248163