Custom Avatar Exporter fix for 5.0.0 beta 7

CompileAvatarWindow.cs

using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEditor;
using UnityEditor.SceneManagement;
using UnityEngine;
using CustomAvatar;

public class CompileAvatarWindow : EditorWindow
{
	private AvatarDescriptor[] avatars;
    
    [MenuItem("Window/Avatar Exporter")]
    public static void ShowWindow()
    {
		EditorWindow.GetWindow(typeof(CompileAvatarWindow),false , "Avatar Exporter");
    }

    void OnGUI()
    {
        GUILayout.Label("Avatars", EditorStyles.boldLabel);

		GUILayout.Space(20);
        
		foreach (AvatarDescriptor avatar in avatars)
        {
            if (avatar == null)
            {
                return;
            }
			GUILayout.Label ("GameObject : " + avatar.gameObject.name, EditorStyles.boldLabel);
			avatar.author = EditorGUILayout.TextField("Author Name", avatar.author);
			avatar.name = EditorGUILayout.TextField("Avatar Name", avatar.name);

			EditorGUI.BeginDisabledGroup (avatar.transform.Find("LeftHand") == null || avatar.transform.Find("RightHand") == null || avatar.transform.Find("Body") == null || avatar.transform.Find("Head") == null);
			if(GUILayout.Button("Export " + avatar.name))
            {
				GameObject avatarObject = avatar.gameObject;
				if (avatarObject != null && avatar != null)
                {
					string path = EditorUtility.SaveFilePanel("Save .avatar file", "", avatar.name + ".avatar", "avatar");
					Debug.Log(path == "");

					if (path != "") {
						string fileName = Path.GetFileName (path);
						string folderPath = Path.GetDirectoryName (path);

						Selection.activeObject = avatarObject;
						EditorUtility.SetDirty (avatar);
						EditorSceneManager.MarkSceneDirty (avatarObject.scene);
						EditorSceneManager.SaveScene (avatarObject.scene);
						PrefabUtility.CreatePrefab ("Assets/_CustomAvatar.prefab", Selection.activeObject as GameObject);
						AssetBundleBuild assetBundleBuild = default(AssetBundleBuild);
						assetBundleBuild.assetNames = new string[] {
							"Assets/_CustomAvatar.prefab"
						};

						assetBundleBuild.assetBundleName = fileName;

						BuildTargetGroup selectedBuildTargetGroup = EditorUserBuildSettings.selectedBuildTargetGroup;
						BuildTarget activeBuildTarget = EditorUserBuildSettings.activeBuildTarget;

						BuildPipeline.BuildAssetBundles (Application.temporaryCachePath, new AssetBundleBuild[]{ assetBundleBuild }, 0, EditorUserBuildSettings.activeBuildTarget);
						EditorPrefs.SetString ("currentBuildingAssetBundlePath", folderPath);
						EditorUserBuildSettings.SwitchActiveBuildTarget (selectedBuildTargetGroup, activeBuildTarget);
						AssetDatabase.DeleteAsset ("Assets/_CustomAvatar.prefab");
						File.Move (Application.temporaryCachePath + "/" + fileName, path);
						AssetDatabase.Refresh ();
						EditorUtility.DisplayDialog ("Export Successful!", "Export Successful!", "OK");
					} else {
						EditorUtility.DisplayDialog ("Export Failed!", "Path is invalid.", "OK");
					}
                }
                else
                {
					EditorUtility.DisplayDialog ("Export Failed!", "Saber GameObject is missing.", "OK");
                }
            }
			EditorGUI.EndDisabledGroup ();

			if (avatar.transform.Find("LeftHand") == null) {
				GUILayout.Label ("LeftHand gameObject is missing", EditorStyles.boldLabel);
			}
			if (avatar.transform.Find("RightHand") == null) {
				GUILayout.Label ("RightHand gameObject is missing", EditorStyles.boldLabel);
			}
			if (avatar.transform.Find("Body") == null) {
				GUILayout.Label ("Body gameObject is missing", EditorStyles.boldLabel);
			}
			if (avatar.transform.Find("Head") == null) {
				GUILayout.Label ("Head gameObject is missing", EditorStyles.boldLabel);
			}
			GUILayout.Space(20);
		}
    }

    private void OnFocus()
    {
		avatars = GameObject.FindObjectsOfType<AvatarDescriptor>();
    }
}