problem running Unity Character Customization demo in Unity 4.2.0f4

Hello,

I have downloaded the Unity Character Customization tutorial from this site : http://unity3d.com/gallery/demos/live-demos#character-customization

I have a pro version of Unity 4.2.0f4 running on Mac OSX 10.9 .

I have opened the DressingroomExample Scene in Unity . When I run the scene the errors are :

Error1 : The asset bundle 'file:///Users/Gatoss/Documents/srikanth/UnityProjects/characterdemo/unity/Assets/../assetbundles/CharacterElementDatabase.assetbundle' could not be loaded because it is not compatible with this newer version of the Unity runtime. Rebuild the AssetBundle to fix this error. UnityEngine.WWW:get_assetBundle() CharacterGenerator:get_ReadyToUse() (at Assets/Plugins/CharacterGenerator.cs:186) c__Iterator0:MoveNext() (at Assets/DressingroomExample/Main.cs:26)

Error 2 : NullReferenceException CharacterGenerator.get_ReadyToUse () (at Assets/Plugins/CharacterGenerator.cs:186) Main+c__Iterator0.MoveNext () (at Assets/DressingroomExample/Main.cs:26)

Please find me a way to solve this problem , I have run the project by taking the Build, even this doesn't solve the problem.

Thanks in Advance. I also cannot understand the code and concept behind , It would be very grateful if any one would do it.