DebugBar bug after Migration 3.0 => 3.7 with vendor 3.7

Need Help
1

Hello all !
I try to display DebugKit after migration, but, just little bugging div on bottom left with error message.
On my logs :

2019-04-12 00:02:55 Error: [Cake\Routing\Exception\MissingControllerException] Controller class DebugKit could not be found.

Exception Attributes: array (

‘class’ => ‘DebugKit’,

‘plugin’ => false,

‘prefix’ => false,

‘_ext’ => false,

)

#0 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Http\ControllerFactory.php(39): Cake\Http\ControllerFactory->missingController(Object(Cake\Http\ServerRequest))

#1 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Http\ActionDispatcher.php(91): Cake\Http\ControllerFactory->create(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response))

#2 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Http\BaseApplication.php(235): Cake\Http\ActionDispatcher->dispatch(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response))

#3 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Http\Runner.php(65): Cake\Http\BaseApplication->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response), Object(Cake\Http\Runner))

#4 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Routing\Middleware\RoutingMiddleware.php(162): Cake\Http\Runner->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response))

#5 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Http\Runner.php(65): Cake\Routing\Middleware\RoutingMiddleware->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response), Object(Cake\Http\Runner))

#6 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Routing\Middleware\AssetMiddleware.php(88): Cake\Http\Runner->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response))

#7 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Http\Runner.php(65): Cake\Routing\Middleware\AssetMiddleware->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response), Object(Cake\Http\Runner))

#8 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Error\Middleware\ErrorHandlerMiddleware.php(96): Cake\Http\Runner->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response))

#9 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Http\Runner.php(65): Cake\Error\Middleware\ErrorHandlerMiddleware->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response), Object(Cake\Http\Runner))

#10 D:\wamp\www*****************\vendor\cakephp\debug_kit\src\Middleware\DebugKitMiddleware.php(53): Cake\Http\Runner->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response))

#11 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Http\Runner.php(65): DebugKit\Middleware\DebugKitMiddleware->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response), Object(Cake\Http\Runner))

#12 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Http\Runner.php(51): Cake\Http\Runner->__invoke(Object(Cake\Http\ServerRequest), Object(Cake\Http\Response))

#13 D:\wamp\www*****************\vendor\cakephp\cakephp\src\Http\Server.php(98): Cake\Http\Runner->run(Object(Cake\Http\MiddlewareQueue), Object(Cake\Http\ServerRequest), Object(Cake\Http\Response))

#14 D:\wamp\www*****************\webroot\index.php(40): Cake\Http\Server->run()

#15 {main}

Request URL: /debug-kit/toolbar/2ec16234-66cb-4696-aa72-732c4cd478c4

Referer URL: http://*****************.local/

After hours & hours of recherche…
If you have any solution… I love you !

2

In case someone googles this up like I just did, see Element file "BootstrapUI.Element/Flash/default.ctp" is missing · Issue #260 · FriendsOfCake/bootstrap-ui · GitHub