WSOD: You have requested a non-existent service "plugin.manager.config_entity_migration"

Existing issue: #2825846: Migrate Tools dashboard plugin manager/config deriver UI issues

New patch for Drupal 8.3.5 because #2 did not work for me.

The last patch seems working.

For me (using the migrate_example_advanced from 4.0-beta1 with core 8.4.0) the last patch fixes the listing of migrations but I'm still getting an error opening an individual migration:

TypeError: Argument 1 passed to Drupal\migrate_tools\Controller\MigrationController::__construct() must be an instance of Drupal\migrate_plus\Plugin\MigrationConfigEntityPluginManager, instance of Drupal\migrate\Plugin\MigrationPluginManager given, called in /Users/Shared/htdocs/drupal840/modules/contrib/migrate_tools/src/Controller/MigrationController.php on line 40 in Drupal\migrate_tools\Controller\MigrationController->__construct() (line 31 of /Users/Shared/htdocs/drupal840/modules/contrib/migrate_tools/src/Controller/MigrationController.php) #0 /Users/Shared/htdocs/drupal840/modules/contrib/migrate_tools/src/Controller/MigrationController.php(40): Drupal\migrate_tools\Controller\MigrationController->__construct(Object(Drupal\migrate\Plugin\MigrationPluginManager)) #1 /Users/Shared/htdocs/drupal840/core/lib/Drupal/Core/DependencyInjection/ClassResolver.php(28): Drupal\migrate_tools\Controller\MigrationController::create(Object(Drupal\Core\DependencyInjection\Container)) #2 /Users/Shared/htdocs/drupal840/core/lib/Drupal/Core/Controller/ControllerResolver.php(123): Drupal\Core\DependencyInjection\ClassResolver->getInstanceFromDefinition('\\Drupal\\migrate...') #3 /Users/Shared/htdocs/drupal840/core/lib/Drupal/Core/Controller/ControllerResolver.php(74): Drupal\Core\Controller\ControllerResolver->createController('\\Drupal\\migrate...') #4 /Users/Shared/htdocs/drupal840/core/lib/Drupal/Core/Controller/ControllerResolver.php(91): Drupal\Core\Controller\ControllerResolver->getControllerFromDefinition('\\Drupal\\migrate...', '/admin/structur...') #5 /Users/Shared/htdocs/drupal840/vendor/symfony/http-kernel/HttpKernel.php(136): Drupal\Core\Controller\ControllerResolver->getController(Object(Symfony\Component\HttpFoundation\Request)) #6 /Users/Shared/htdocs/drupal840/vendor/symfony/http-kernel/HttpKernel.php(68): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1) #7 /Users/Shared/htdocs/drupal840/core/lib/Drupal/Core/StackMiddleware/Session.php(57): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #8 /Users/Shared/htdocs/drupal840/core/lib/Drupal/Core/StackMiddleware/KernelPreHandle.php(47): Drupal\Core\StackMiddleware\Session->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #9 /Users/Shared/htdocs/drupal840/core/modules/page_cache/src/StackMiddleware/PageCache.php(99): Drupal\Core\StackMiddleware\KernelPreHandle->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #10 /Users/Shared/htdocs/drupal840/core/modules/page_cache/src/StackMiddleware/PageCache.php(78): Drupal\page_cache\StackMiddleware\PageCache->pass(Object(Symfony\Component\HttpFoundation\Request), 1, true) #11 /Users/Shared/htdocs/drupal840/core/lib/Drupal/Core/StackMiddleware/ReverseProxyMiddleware.php(47): Drupal\page_cache\StackMiddleware\PageCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #12 /Users/Shared/htdocs/drupal840/core/lib/Drupal/Core/StackMiddleware/NegotiationMiddleware.php(50): Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #13 /Users/Shared/htdocs/drupal840/vendor/stack/builder/src/Stack/StackedHttpKernel.php(23): Drupal\Core\StackMiddleware\NegotiationMiddleware->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #14 /Users/Shared/htdocs/drupal840/core/lib/Drupal/Core/DrupalKernel.php(657): Stack\StackedHttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #15 /Users/Shared/htdocs/drupal840/index.php(19): Drupal\Core\DrupalKernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #16 {main}.

I'm not sure this is exactly the same error but from the error I'm inclined to think so.

Eric

Added path for version: '8.x-2.0-beta1' & D8 v8.3.5