Antialiasing as Post Effect in Unity 3.5.0

I got this message every frame for Antialiasing as Post Effect: Missing shader in Main Camera (AntialiasingAsPostEffect) UnityEngine.Debug:Log(Object) PostEffectsBase:CheckShaderAndCreateMaterial(Shader, Material) (at Assets/Standard Assets/Image Effects (Pro Only)/PostEffectsBase.js:13) AntialiasingAsPostEffect:CreateMaterials() (at Assets/Standard Assets/Image Effects (Pro Only)/AntialiasingAsPostEffect.js:37) AntialiasingAsPostEffect:OnRenderImage(RenderTexture, RenderTexture) (at Assets/Standard Assets/Image Effects (Pro Only)/AntialiasingAsPostEffect.js:51) The effects worked fine before I upgraded my project to 3.5.0. I am using SSAO. Is this Image Effect not supported any more? Any alternative if so? Any help appreciated :)