Toon shader and assetBundle

Hi

I can’t build an assetBundle which contain an object with a Toon Shader. I get the message :

“Building AssetBundle failed because some of the included assets are not supported on the platform target”

And I really dont’t know why it not possible to do this. Is there a workaround for this ?

Do you try to use it for iPhone?
Or normal asset bundles?

No I need it for web and I use this build settings :
(unity 2.6.1 for windows)

BuildAssetBundleOptions.CollectDependencies | BuildAssetBundleOptions.CompleteAssets
with the BuildPipeline.BuildAssetBundle
command

The same object with another shader applied export perfectly ! Maybe because of the cubemap ?