check if file exists first

Author: taylorotwell

src/Illuminate/Console/Scheduling/Event.php

@@ -405,7 +405,7 @@ protected function ensureOutputIsBeingCapturedForEmail()
      */
     protected function emailOutput(Mailer $mailer, $addresses, $onlyIfOutputExists = false)
     {
-        $text = file_get_contents($this->output);
+        $text = file_exists($this->output) ? file_get_contents($this->output) : '';
 
         if ($onlyIfOutputExists && empty($text)) {
             return;