错误信息：

An Error occurred while handling another error:
Error: Class 'app\controllers\FileTarget' not found in H:\Projects\XXXX\main\controllers\ErrorController.php:20
Stack trace:
#0 [internal function]: app\controllers\ErrorController->actionError()
#1 H:\Projects\XXXX\main\vendor\yiisoft\yii2\base\InlineAction.php(57): call_user_func_array(Array, Array)
#2 H:\Projects\XXXX\main\vendor\yiisoft\yii2\base\Controller.php(156): yii\base\InlineAction->runWithParams(Array)
#3 H:\Projects\XXXX\main\vendor\yiisoft\yii2\base\Module.php(523): yii\base\Controller->runAction('error', Array)
#4 H:\Projects\XXXX\main\vendor\yiisoft\yii2\web\ErrorHandler.php(97): yii\base\Module->runAction('error/error')
#5 H:\Projects\XXXX\main\vendor\yiisoft\yii2\base\ErrorHandler.php(111): yii\web\ErrorHandler->renderException(Object(yii\web\NotFoundHttpException))
#6 [internal function]: yii\base\ErrorHandler->handleException(Object(yii\web\NotFoundHttpException))
#7 {main}
Previous exception:
yii\base\InvalidRouteException: Unable to resolve the request "asdasd". in H:\Projects\XXXX\main\vendor\yiisoft\yii2\base\Module.php:532
Stack trace:
#0 H:\Projects\XXXX\main\vendor\yiisoft\yii2\web\Application.php(102): yii\base\Module->runAction('asdasd', Array)
#1 H:\Projects\XXXX\main\vendor\yiisoft\yii2\base\Application.php(380): yii\web\Application->handleRequest(Object(yii\web\Request))
#2 H:\Projects\XXXX\main\web\index.php(12): yii\base\Application->run()
#3 {main}

Next yii\web\NotFoundHttpException: Page not found. in H:\Projects\XXXX\main\vendor\yiisoft\yii2\web\Application.php:114
Stack trace:
#0 H:\Projects\XXXX\main\vendor\yiisoft\yii2\base\Application.php(380): yii\web\Application->handleRequest(Object(yii\web\Request))
#1 H:\Projects\XXXX\main\web\index.php(12): yii\base\Application->run()
#2 {main}