During the provision of an AWS environment with vagrant:
vagrant up --provision aws
This command returned
No host IP was given to the Vagrant core NFS helper. This is an internal error that should be reported as a bug.
It was quite hard understand why vagrant is trying to use NFS, even because it should be disabled, on AWS synced_folder are copied using rsync.
At last I found this link "Error: No host IP was given to the Vagrant core NFS helper" in 0.2.0 #5 https://github.com/gosddc/vagrant-vcenter/issues/5
where is suggested to use
config.nfs.functional = false
If you have a multi environment configuration like me, I suggest to use:
config.vm.provider :aws do |aws, override|
override.nfs.functional = false