| Q | A | ---------------- | ----- | Bug report? | yes | Feature request? | no | BC Break report? | no | RFC? | no | Symfony version | 4.0.3 I have a issue with executing build-in command in Controller. I have following code: ` $application = new Application($this->get('kernel')); $application->setAutoExit(false); $input = new ArrayInput([ 'command' => 'cache:clear', ]); $output = new BufferedOutput(); $application->run($input, $output); $content = $output->fetch(); ` It's throws `Compile Error: Cannot declare class srcDevDebugProjectContainerUrlMatcher, because the name is already in use` but in 3.4.x it was work