Tree Creator is not working in unity 5

Unity Engine
1

hi .
Right now i am trying to create a tree in unity5. but i am getting the root is created. if i select the bark of the tree. i am not getting any options is showing in the editor to change it. this error is same for leafs too. and it is showing some error in the console window in some script.

how to solve this error. this is the error i am getting in the console

Failed getting triangles. Submesh topology is lines or points.
UnityEngine.Mesh:get_triangles()
TreeEditor.TreeEditor:smile:rawHierachy(TreeData, Renderer, Rect) (at C:/buildslave/unity/build/Editor/Mono/TreeEditor/TreeEditor.cs:2562)
TreeEditor.TreeEditor:InspectorHierachy(TreeData, Renderer) (at C:/buildslave/unity/build/Editor/Mono/TreeEditor/TreeEditor.cs:1638)
TreeEditor.TreeEditor:OnInspectorGUI() (at C:/buildslave/unity/build/Editor/Mono/TreeEditor/TreeEditor.cs:2393)
UnityEditor.DockArea:OnGUI()

ArgumentException: Illegal characters in path.
System.IO.Path.GetFileName (System.String path) (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.IO/Path.cs:273)
UnityEditor.EditorGUIUtility.LoadIconForSkin (System.String name, Int32 skinIndex) (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorGUIUtilityBindings.gen.cs:199)
UnityEditor.EditorGUIUtility.LoadIcon (System.String name) (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorGUIUtilityBindings.gen.cs:175)
UnityEditor.EditorGUIUtility.LoadIconRequired (System.String name) (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorGUIUtilityBindings.gen.cs:165)
UnityEditor.EditorGUIUtility.IconContent (System.String name, System.String tooltip) (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorGUIUtilityBindings.gen.cs:234)
TreeEditor.TreeEditor.BuildToolbarContent (System.String[ ] contentStrings, Int32 selection) (at C:/buildslave/unity/build/Editor/Mono/TreeEditor/TreeEditor.cs:1763)
TreeEditor.TreeEditor.InspectorEditTools (UnityEngine.Tree obj) (at C:/buildslave/unity/build/Editor/Mono/TreeEditor/TreeEditor.cs:1732)
TreeEditor.TreeEditor.InspectorBranch (TreeEditor.TreeData treeData, TreeEditor.TreeGroupBranch group) (at C:/buildslave/unity/build/Editor/Mono/TreeEditor/TreeEditor.cs:2113)
TreeEditor.TreeEditor.OnInspectorGUI () (at C:/buildslave/unity/build/Editor/Mono/TreeEditor/TreeEditor.cs:2402)
UnityEditor.InspectorWindow.DrawEditor (UnityEditor.Editor editor, Int32 editorIndex, Boolean forceDirty, System.Boolean& showImportedObjectBarNext, UnityEngine.Rect& importedObjectBarRect, Boolean eyeDropperDirty) (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:1162)
UnityEditor.DockArea:OnGUI()

ArgumentException: Illegal characters in path.
System.IO.Path.GetFileName (System.String path) (at /Users/builduser/buildslave/mono-runtime-and-classlibs/build/mcs/class/corlib/System.IO/Path.cs:273)
UnityEditor.EditorGUIUtility.LoadIconForSkin (System.String name, Int32 skinIndex) (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorGUIUtilityBindings.gen.cs:199)
UnityEditor.EditorGUIUtility.LoadIcon (System.String name) (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorGUIUtilityBindings.gen.cs:175)
UnityEditor.EditorGUIUtility.LoadIconRequired (System.String name) (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorGUIUtilityBindings.gen.cs:165)
UnityEditor.EditorGUIUtility.IconContent (System.String name, System.String tooltip) (at C:/buildslave/unity/build/artifacts/generated/common/editor/EditorGUIUtilityBindings.gen.cs:234)
TreeEditor.TreeEditor.BuildToolbarContent (System.String[ ] contentStrings, Int32 selection) (at C:/buildslave/unity/build/Editor/Mono/TreeEditor/TreeEditor.cs:1763)
TreeEditor.TreeEditor.InspectorEditTools (UnityEngine.Tree obj) (at C:/buildslave/unity/build/Editor/Mono/TreeEditor/TreeEditor.cs:1732)
TreeEditor.TreeEditor.InspectorBranch (TreeEditor.TreeData treeData, TreeEditor.TreeGroupBranch group) (at C:/buildslave/unity/build/Editor/Mono/TreeEditor/TreeEditor.cs:2113)
TreeEditor.TreeEditor.OnInspectorGUI () (at C:/buildslave/unity/build/Editor/Mono/TreeEditor/TreeEditor.cs:2402)
UnityEditor.InspectorWindow.DrawEditor (UnityEditor.Editor editor, Int32 editorIndex, Boolean forceDirty, System.Boolean& showImportedObjectBarNext, UnityEngine.Rect& importedObjectBarRect, Boolean eyeDropperDirty) (at C:/buildslave/unity/build/Editor/Mono/Inspector/InspectorWindow.cs:1162)
UnityEditor.DockArea:OnGUI()

2

Just encountered this same issue myself. Did you ever get this resolved?