Menu Component/Physics/Obi/Obi Particle Baker can't be checked because doesn't exist?

[jabza]

Hi,

After updating to Unity 2018.2.0f2 I now get the following errors every time I open my scene:

Menu Component/Physics/Obi/Obi Particle Baker can't be checked because doesn't exist
Menu Component/Physics/Obi/Obi Particle Renderer can't be checked because doesn't exist

Is there any way I can supress this, as it doesn't appear to affect anything.

Thanks!