No se puede ejecutar vagrant y aparece 'No se pudo encontrar la clase php para vagrant.vm en el nodo vagrant.vm'

Question

Heredé un proyecto web de otro desarrollador, está construido en Laravel y fue configurado para usar Vagrant.

Instalé la última versión de Vagrant y, cuando la ejecuto, vagrant upsigue los pasos habituales hasta que arroja el siguiente error:

==> default: Running Puppet with default.pp...
==> default: Error: Could not find class php for vagrant.vm on node vagrant.vm
==> default: Error: Could not find class php for vagrant.vm on node vagrant.vm
The SSH command responded with a non-zero exit status. Vagrant
assumes that this means the command failed. The output for this command
should be in the log above. Please read the output to determine what
went wrong.

Mi default.pparchivo es el siguiente:

    ensure => present,
}

exec { 'apt-get update':
    command => '/usr/bin/apt-get update',
}

# Include our classes
hiera_include('classes')

package { 'nano':
    ensure => present,
    require => Exec['apt-get update'],
}

# Set up nginx
package { 'nginx':
    ensure => present,
    require => Exec['apt-get update'],
}

service { 'nginx':
    ensure => running,
    require => Package['nginx'],
}

file { 'default-nginx-disable':
    path => '/etc/nginx/sites-enabled/default',
    ensure => absent,
    require => Package['nginx'],
}

file { 'nginx-vhost':
    path => '/etc/nginx/sites-available/vhost.conf',
    source => 'puppet:///modules/nginx/vhost',
    require => File['default-nginx-disable']
}

file { 'vagrant-nginx-enable':
    path => '/etc/nginx/sites-enabled/vhost.conf',
    target => '/etc/nginx/sites-available/vhost.conf',
    ensure => link,
    notify => Service['nginx'],
    require => [
        File['nginx-vhost'],
    ],
}

class { '::mysql::server':
    root_password => 'mysqlpass'
}

class { '::mysql::bindings':
    php_enable => true
}

class { 'elasticsearch':
    java_install => true,
    manage_repo  => true,
    repo_version => '5.x'
}

elasticsearch::instance { 'es-01': }