build up path with prefixed forward slash

lib/Gitlab/Api/Group.php

@@ -16,7 +16,7 @@ class Group extends Base
             ->setAllowedTypes('include_subgroups', 'bool')
             ->setNormalizer('include_subgroups', $this->getBooleanNormaliser());
 
-        $queryPath = 'groups/' . $this->encodeObjectPath($path) . '/projects';
+        $queryPath = '/groups/' . $this->encodeObjectPath($path) . '/projects';
 
         $resolvedParameters = $resolver->resolve($parameters);
 

lib/Gitlab/Api/Parameters/ListGroupProjects.php

@@ -1,26 +0,0 @@
-<?php
-
-
-namespace Gitlab\Api\Parameters;
-
-
-class ListGroupProjects
-{
-    /*
-     * @var bool
-     */
-    private $archived;// 	boolean 	no 	Limit by archived status
-    private $visibility;// 	string 	no 	Limit by visibility public, internal, or private
-    private $order_by;// 	string 	no 	Return projects ordered by id, name, path, created_at, updated_at, or last_activity_at fields. Default is created_at
-    private $sort;// 	string 	no 	Return projects sorted in asc or desc order. Default is desc
-    private $search;// 	string 	no 	Return list of authorized projects matching the search criteria
-    private $simple;// 	boolean 	no 	Return only the ID, URL, name, and path of each project
-    private $owned;// 	boolean 	no 	Limit by projects owned by the current user
-    private $starred;// 	boolean 	no 	Limit by projects starred by the current user
-    private $with_issues_enabled;// 	boolean 	no 	Limit by projects with issues feature enabled. Default is false
-    private $with_merge_requests_enabled;// 	boolean 	no 	Limit by projects with merge requests feature enabled. Default is false
-    private $with_shared;// 	boolean 	no 	Include projects shared to this group. Default is true
-    private $include_subgroups;// 	boolean 	no 	Include projects in subgroups of this group. Default is false
-    private $with_custom_attributes;// 	boolean 	no 	Include custom attributes in response (admins only)
-
-}