OpenProject Backlogs depends on OpenProject PDF export Plugin. Thus, if you haven't done
it already, add the following lines to the `Gemfile.plugins` to your OpenProject installation (if you use a different OpenProject version than OpenProject 4.1, adapt :branch => "stable/4.1" to your OpenProject version):
it already, add the following lines to the `Gemfile.plugins` to your OpenProject installation (if you use a different OpenProject version than OpenProject 5, adapt :branch => "stable/5" to your OpenProject version):
For OpenProject Backlogs itself you need to add the following line to the
`Gemfile.plugins` of OpenProject (if you use a different OpenProject version than OpenProject 4.1, adapt :branch => "stable/4.1" to your OpenProject version):
`Gemfile.plugins` of OpenProject (if you use a different OpenProject version than OpenProject 4.1, adapt :branch => "stable/5" to your OpenProject version):