So I found a troubleshooting topic for this error:
- Check status of nfs-kernel-server
systemctl status nfs-kernel-serverfor errors likeexportfs: Failed to stat /path : No such file or directory. Then create the missing directory or remove the line from/etc/exportsand restart the nfs-kerne-serversysctemctl start nfs-kernel-server
Also on that page check the section For OS X, sudoers should have this entry: and ensure those changes.