Fixed BadMethodException in GPM updates #1784

CHANGELOG.md

@@ -6,6 +6,8 @@
     * Added `theme_var` and `body_class` Twig functions that are useful for themes
 1. [](#improved)
     * Updated vendor libraries to latest version
+1. [](#bugfix)
+    * Fixed `BadMethodCallException` thrown in GPM updates [#1784](https://github.com/getgrav/grav/issues/1784)
 
 # v1.4.0-beta.1
 ## 12/11/2017

system/src/Grav/Common/GPM/Common/Package.php

@@ -35,7 +35,7 @@ class Package {
     }
 
     public function __set($key, $value) {
-        throw new \BadMethodCallException('Not Implemented');
+        $this->data->set($key, $value);
     }
 
     public function __toString() {