Vagrant: Kesalahan saat memasang plugin bindfs

Ketika saya mencoba menginstal vagrant-bindfs saya mendapatkan kesalahan, lihat di bawah.
Saya berhasil menginstal vagrant-hostsupdater

Versi gelandangan

Gelandangan 1.8.7
ruby 2.3.1p112 (26-04-2016) [x86_64-linux-gnu] (diinstal oleh gelandangan)

Sistem operasi tuan rumah

Ubuntu Mate sepenuhnya diperbarui

Keluaran debug

https://Gist.github.com/janw-oostendorp/31c131631e9021eab346fca1039d788b

Perilaku yang diharapkan

Memasang plugin

Perilaku sebenarnya

Sebuah kesalahan:

Installing the 'vagrant-bindfs' plugin. This can take a few minutes...
Bundler, the underlying system Vagrant uses to install plugins,
reported an error. The error is shown below. These errors are usually
caused by misconfigured plugin installations or transient network
issues. The error from Bundler is:

An error occurred while installing vagrant-bindfs (0.4.12), and Bundler cannot continue.
Make sure that `gem install vagrant-bindfs -v '0.4.12'` succeeds before bundling.

Warning: this Gemfile contains multiple primary sources. Using `source` more than once without a block is a security risk, and may result in installing unexpected gems. To resolve this warning, use a block to indicate which gems should come from the secondary source. To upgrade this warning to an error, run `bundle config disable_multisource true`.Gem::InstallError: vagrant-bindfs requires Ruby version ~> 2.0.0.

Langkah-langkah untuk mereproduksi

1. ~$ vagrant plugin install vagrant-bindfs
2. mendapatkan kesalahan