Removing libllvm4.0:amd64 (1:4.0-1ubuntu1~16.04.2) ...
Processing triggers for libc-bin (2.23-0ubuntu9) ...
Setting up diaspora-installer (0.5.7.1+debian2) ...
Download diaspora tarball version 0.5.7.1 from github.com...
Extracting files...
Copying files to /usr/share/diaspora...
diaspora archive to copy: diaspora-0.5.7.1
Copying source tarball to /usr/share/diaspora/public...
Setting up environment varibales...
Using /usr/share/diaspora-common/diaspora.conf...
export RAILS_ENV=production
export DB=mysql
RAILS_ENV=production DB=mysql ENVIRONMENT_URL=https://localhost
ERROR:  Could not find a valid gem 'bundler' (>= 0), here is why:
          Unable to download data from https://rubygems.org/ - no such name (https://rubygems.org/specs.4.8.gz)
dpkg: error processing package diaspora-installer (--configure):
 subprocess installed post-installation script returned error exit status 2