After installing this module, no page on my website will load, and my PHP error log contains entries that look like this:

Uncaught PHP Exception Drupal\Component\Plugin\Exception\PluginNotFoundException: "The "layout_onecol" plugin does not exist." at /Users/myuser/Sites/myclient/html/core/lib/Drupal/Component/Plugin/Discovery/DiscoveryTrait.php line 52

Disabling the module brought the site back to normal. I made sure I had layout_discovery enabled, and I get the same error whether or not I have layout_builder installed. How can I resolve this fatal error?

Comments

mandclu created an issue. See original summary.

Anonymous’s picture

Anonymous (not verified) commented

Hmm this might be because of a recent core update. I can investigate and see if that's the case.

If they happened to remove core layouts it could be the cause...

mandclu’s picture

mandclu commented
Status: Active » Closed (works as designed)

It turns out I had enabled the Field Layout module, which adds the One Column layout as a default all over the place. Technically that means this module is incompatible with Field Layout, but given that it's experimental I don't see that as a big issue for now.

deepa03’s picture

deepa03 commented

how to solve this issue ??