Blender Cache Error. 0 frames in memory Cache is Outdated Hi, so for the last couple of days i've been trying to bake hair particles from a tree I modeled  but I keep getting this error that says "0 frames in memory (0 B), cache is outdated!" and I can't find an answer for this. 

At first I thought that maybe I did something wrong with the project file, but then I started a new one with the default cube, I added some hair particles and the same error still appeared. Does anyone know how to fix this? Or what is the cause?
I had this &quot;0 frames in memory, cache is outdated&quot;. My collection was empty. after I clicked RigidBodyWorld. Bake works:)