no suitable method to override - Unity : Iam trying some stuff with Unity and geting lot of this error where is always „no suitable method to override“. For example: Assets/Standard Assets/Effects/ImageEffects/Scripts/Antialiasing.cs(86,30): error CS0115: `UnityStandardAssets.ImageEffects.Antialiasing.CheckResources()' is marked as an override but no suitable method found to override. Its look like that error is trivial, but i dont know c++ basic, so dont know what with this. Can you show at this example, how fix this? Thanks!

        public override bool CheckResources()
        {
            CheckSupport(false);

            materialFXAAPreset2 = CreateMaterial(shaderFXAAPreset2, materialFXAAPreset2);
            materialFXAAPreset3 = CreateMaterial(shaderFXAAPreset3, materialFXAAPreset3);
            materialFXAAII = CreateMaterial(shaderFXAAII, materialFXAAII);
            materialFXAAIII = CreateMaterial(shaderFXAAIII, materialFXAAIII);
            nfaa = CreateMaterial(nfaaShader, nfaa);
            ssaa = CreateMaterial(ssaaShader, ssaa);
            dlaa = CreateMaterial(dlaaShader, dlaa);

            if (!ssaaShader.isSupported)
            {
                NotSupported();
                ReportAutoDisable();
            }

            return isSupported;
        }

