Hi guys I load the PHPExcel plugins and Phabricator is able to see the difference (after specified include_path of PHPExcel/Classes) but I got this error: Unhandled Exception ("PhutilMissingSymbolException")
```
Failed to load class or interface 'PHPExcel_Shared_XMLWriter': the class or interface 'PHPExcel_Shared_XMLWriter' is not defined in the library map for any loaded phutil library. If this symbol was recently added or moved, your library map may be out of date. You can rebuild the map by running 'arc liberate'. For more information, see: http://www.phabricator.com/docs/phabricator/article/libphutil_Libraries_User_Guide.html
```
The specified class is in a subfolder of classes folder... Any idea?