MAGETWO-53777: [Github] Magento 2.1 RC1 - Error when running CLI upgrade command #4795

- adding check to see if file exists.

Author: mazhalai

lib/internal/Magento/Framework/App/ObjectManager/ConfigLoader/Compiled.php

@@ -8,6 +8,9 @@
 
 use Magento\Framework\ObjectManager\ConfigLoaderInterface;
 
+/**
+ * Class Compiled returns configuration cache information
+ */
 class Compiled implements ConfigLoaderInterface
 {
     /**
@@ -25,8 +28,12 @@ public function load($area)
         if (isset($this->configCache[$area])) {
             return $this->configCache[$area];
         }
-        $this->configCache[$area] = \unserialize(\file_get_contents(self::getFilePath($area)));
-        return $this->configCache[$area];
+        $filePath = self::getFilePath($area);
+        if (\file_exists($filePath)) {
+            $this->configCache[$area] = \unserialize(\file_get_contents($filePath));
+            return $this->configCache[$area];
+        }
+        return [];
     }
 
     /**