exception 'yii\base\InvalidParamException' with message 'The view file does not exist: /var/www/html/apns-gcm/views/site/error.php' in /var/www/html/apns-gcm/vendor/yiisoft/yii2/base/View.php:226
Stack trace:
#0 /var/www/html/apns-gcm/vendor/yiisoft/yii2/base/View.php(149): yii\base\View->renderFile('/var/www/html/a...', Array, Object(app\controllers\SiteController))
#1 /var/www/html/apns-gcm/vendor/yiisoft/yii2/base/Controller.php(367): yii\base\View->render('error', Array, Object(app\controllers\SiteController))
#2 /var/www/html/apns-gcm/vendor/yiisoft/yii2/web/ErrorAction.php(108): yii\base\Controller->render('error', Array)
#3 [internal function]: yii\web\ErrorAction->run()
#4 /var/www/html/apns-gcm/vendor/yiisoft/yii2/base/Action.php(92): call_user_func_array(Array, Array)
#5 /var/www/html/apns-gcm/vendor/yiisoft/yii2/base/Controller.php(151): yii\base\Action->runWithParams(Array)
#6 /var/www/html/apns-gcm/vendor/yiisoft/yii2/base/Module.php(455): yii\base\Controller->runAction('error', Array)
#7 /var/www/html/apns-gcm/vendor/yiisoft/yii2/web/ErrorHandler.php(79): yii\base\Module->runAction('site/error')
#8 /var/www/html/apns-gcm/vendor/yiisoft/yii2/base/ErrorHandler.php(95): yii\web\ErrorHandler->renderException(Object(yii\web\NotFoundHttpException))
#9 [internal function]: yii\base\ErrorHandler->handleException(Object(yii\web\NotFoundHttpException))
#10 {main}
Previous exception:
exception 'yii\base\InvalidRouteException' with message 'Unable to resolve the request "demo/shoppingcart".' in /var/www/html/apns-gcm/vendor/yiisoft/yii2/base/Module.php:461
Stack trace:
#0 /var/www/html/apns-gcm/vendor/yiisoft/yii2/web/Application.php(83): yii\base\Module->runAction('demo/shoppingca...', Array)
#1 /var/www/html/apns-gcm/vendor/yiisoft/yii2/base/Application.php(375): yii\web\Application->handleRequest(Object(yii\web\Request))
#2 /var/www/html/apns-gcm/web/index.php(12): yii\base\Application->run()
#3 {main}

Next exception 'yii\web\NotFoundHttpException' with message 'Unable to resolve the request "demo/shoppingcart".' in /var/www/html/apns-gcm/vendor/yiisoft/yii2/web/Application.php:95
Stack trace:
#0 /var/www/html/apns-gcm/vendor/yiisoft/yii2/base/Application.php(375): yii\web\Application->handleRequest(Object(yii\web\Request))
#1 /var/www/html/apns-gcm/web/index.php(12): yii\base\Application->run()
#2 {main}