EntityTypeManager.php:223; entity_view_display" entity type did not specify a "edit" form class

This issue is now over 3 years old with no updates.

Can we please get some steps to replicate this starting with a fresh install of Drupal 11. If no further updates are made to this ticket in 3 months this will be a candidate to be closed.

Thanks for raising an issue!

No further updates have been made on this issue and it was unable to replicated in the last comment over 3 months ago, so I'm now marking this one as closed.

Thanks!

I've reproduced the issue today, finding a problem in the verifyImplementations function in ModuleHandler.php.
The code there invokes function_exists to check that an implementation exists without having first ensured that the file that might contain the function definition has been loaded.
Adding "$this->loadInclude($module, 'module');" at line 700 of ModuleHandler.php (Drupal 10.3.2) makes the problem go away for me.
To reproduce the issue, I'm doing a cache clear, followed by a page load at admin/structure/display-modes/view. The page loads fine the first time but on the second load, I'm getting:

The website encountered an unexpected error. Try again later.

Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException: The "entity_view_mode" entity type did not specify a list_builder handler. in Drupal\Core\Entity\EntityTypeManager->getHandler() (line 265 of core/lib/Drupal/Core/Entity/EntityTypeManager.php).
Drupal\Core\Entity\EntityTypeManager->getListBuilder('entity_view_mode') (Line: 23)
Drupal\Core\Entity\Controller\EntityListController->listing('entity_view_mode')
call_user_func_array(Array, Array) (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 638)
Drupal\Core\Render\Renderer->executeInRenderContext(Object, Object) (Line: 121)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext(Array, Array) (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 181)
Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object, 1) (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle(Object, 1, 1) (Line: 68)
Drupal\simple_oauth\HttpMiddleware\BasicAuthSwap->handle(Object, 1, 1) (Line: 53)
Drupal\Core\StackMiddleware\Session->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object, 1, 1) (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 32)
Drupal\big_pipe\StackMiddleware\ContentLength->handle(Object, 1, 1) (Line: 106)
Drupal\page_cache\StackMiddleware\PageCache->pass(Object, 1, 1) (Line: 85)
Drupal\page_cache\StackMiddleware\PageCache->handle(Object, 1, 1) (Line: 263)
Drupal\shield\ShieldMiddleware->bypass(Object, 1, 1) (Line: 130)
Drupal\shield\ShieldMiddleware->handle(Object, 1, 1) (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object, 1, 1) (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle(Object, 1, 1) (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle(Object, 1, 1) (Line: 741)
Drupal\Core\DrupalKernel->handle(Object) (Line: 19)

With the change mentioned above in place, I can reload the page without issue.
I assume there's a contrib module or custom code that's the root cause of this, but haven't yet located it. Hopefully the above will at least prove helpful in some way.