+ try {
+ $callable = $this->controllerResolver->getControllerFromDefinition($route->getRequirement('_custom_access'));
+ }
+ catch (\InvalidArgumentException $e) {
+ // The custom access controller method was not found.
+ throw new \BadMethodCallException(sprintf('The "%s" method is not callable as a _custom_access callback in route "%s"', $route->getRequirement('_custom_access'), $route->getPath()));
+ }
+