Unity crashes after attempting to generate NavMesh with RAIN: Fatal Error in GC: Too many heap sections

Every time I try to make a navmesh of my game to have AI set for the enemies, Unity crashes with the above error message, Is this because I am trying to create a navmesh of a 2kx2k terrain with other details? Or is it just my laptop is not powerful enough to do this? Anything helps

Specs: Intel i7 2670QM @ 2.2 8GB RAM DDR3 1.5GB RAM GDDR5; Nvidia GeForce GTX 555M

EDIT: This was done under a console license if that matters at all.