Just inherited a D8 site, tried clearing opcache (because none of my php edits will take) and am getting the error:

The website encountered an unexpected error. Please try again later.

Drupal\Component\Plugin\Exception\PluginNotFoundException: The "broken" plugin does not exist. in Drupal\Core\Plugin\DefaultPluginManager->doGetDefinition() (line 52 of core/lib/Drupal/Component/Plugin/Discovery/DiscoveryTrait.php).

There is no plugin/module I can find called Broken...

Log error:

[22-Feb-2018 17:14:40 America/New_York] Uncaught PHP Exception Drupal\Component\Plugin\Exception\PluginNotFoundException: "The "broken" plugin does not exist." at /mnt/nfs/html/example.com/public/core/lib/Drupal/Component/Plugin/Discovery/DiscoveryTrait.php line 52

Any help on where to start greatly appreciated, and should I start another thread for the php cache issue?

Thanks!

Comments

nszumowski created an issue. See original summary.

nszumowski’s picture

nszumowski commented
Issue summary: View changes
cilefen’s picture

cilefen commented
Component: other » block.module
Issue tags: -Drupal 8.x, -opcache

What about the "broken" block plugin? You'll need a stack trace..

By the way, Drupal 8.2.8 is no longer supported.

nszumowski’s picture

nszumowski commented

/core/lib/Drupal/Core/Block/Plugin/Block/Broken.php exists so must not be it?
I'll try to reproduce the issue tonight and get a stack trace, thanks!

cilefen’s picture

cilefen commented
Related issues: +#2883949: The "integer" plugin does not exist.
nszumowski’s picture

nszumowski commented

I, unfortunately, have not been able to reproduce the '"broken" plugin does not exist' error. Thanks for trying to help. I'll close this out.

pfrenssen’s picture

pfrenssen
Location Sofia
commented
Status: Active » Closed (cannot reproduce)
dqd’s picture

dqd
Location London | N.Y.C | Paris | Hamburg | Berlin
commented

I can reprocude it in D 8.7. and it seems that some contrib modules register plugins and do not provide clean ways to remove system links to it when uninstalling the modules leading to some broken admin sites and broken terminal commands. We maybe need a way how Drupal secures itself by forcing the contrib modules to provide clean uninstall methods for it. (side note, since this issue here is old)

murz’s picture

murz
Primary language English
Location Yerevan, Armenia
commented

I also got same strange error on Drupal 8.6:
Uncaught PHP Exception Drupal\Component\Plugin\Exception\PluginNotFoundException: "The "broken" plugin does not exist. Valid plugin IDs for Drupal\Core\Block\BlockManager are: " at web/core/lib/Drupal/Component/Plugin/Discovery/DiscoveryTrait.php line 53
It is disappeared after cleaning caches.

erpawaramol’s picture

erpawaramol commented
Version: 8.2.8 » 10.0.x-dev

saw same issue today. clearing cache solved all problems