This didn't work for me.
Using ESXi 6.7, and installed v1.33.1 (Feb. 2019) on Fling, and still getting the "VM configuration was rejected"
When created on datastore1, no problem
When created on datastore2, which is NFS, creation fails with error
It looks like the Network adapter is the issue... If VM adapter 'blank' (no port group), you get the error indicated.
Solution is to add a portgroup then recreate VM. Since "VM network" doesn't show when using NFS for some reason, but does show when virtual machine is locally created.