Vagrant does not work: Invalid gemspec in [/usr/share/rubygems-integration/all/specifications/rbnacl-libsodium.gemspec]: stack level too deep

[Ville Ranki]

Steps to reproduce:

1. apt install vagrant (on 18.04 lts)
2. vagrant box list

Invalid gemspec in [/usr/share/rubygems-integration/all/specifications/rbnacl-libsodium.gemspec]: stack level too deep

vagrant up also causes the same error and nothing happens.

Looks like the ubuntu package is broken according to is discussion on the issue on github: https://github.com/hashicorp/vagrant/issues/9788

This is a showstopper bug as it completely prevents the use of vagrant.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: vagrant 2.0.2+dfsg-2ubuntu8
ProcVersionSignature: Ubuntu 4.15.0-39.42-generic 4.15.18
Uname: Linux 4.15.0-39-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Thu Nov 22 11:38:01 2018
InstallationDate: Installed on 2018-05-02 (204 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
SourcePackage: vagrant
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Marat BN (maratbn)]

Hmmm, this happened to me after I tried to manually install Vagrant from source on an Ubuntu 18.04 system, and then tried to go back to the official Ubuntu Vagrant.

So I ran the following command to determine if I had any extra manually-installed Ruby gems on my system that were not compatible with the default Ubuntu Vagrant installation:

comm -23 <(find / -xdev -type f|sort) <(sort /var/lib/dpkg/info/*.list) | grep Ruby | sort

Discovered that I had a whole bunch of extra Ruby gems under '/var/lib/gems/2.5.0/' that weren't owned by any package. Moved the whole directory out from under '/var/lib/gems/', and then was able to run 'vagrant' without any errors.

[Marat BN (maratbn)]

Oh, sorry, meant the command to be:

comm -23 <(find / -xdev -type f|sort) <(sort /var/lib/dpkg/info/*.list) | grep gem | sort

grep gem not 'Ruby'