Could not find a valid gem 'dpl-pages'

My travis build (for plfa/plfa.github.io) is failing with the following error:

Installing deploy dependencies
ERROR: Could not find a valid gem 'dpl-pages' (= 1.10.13.travis.4141.5) in any repository
ERROR: Possible alternatives: dpl-pages
    /home/travis/.rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:59:in `require': cannot load such file -- dpl/provider/pages (LoadError)
    from /home/travis/.rvm/rubies/ruby-2.4.5/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    from /home/travis/.rvm/gems/ruby-2.4.5/gems/dpl-1.10.13.travis.4141.5/lib/dpl/provider.rb:93:in `rescue in block in new'
    from /home/travis/.rvm/gems/ruby-2.4.5/gems/dpl-1.10.13.travis.4141.5/lib/dpl/provider.rb:68:in `block in new'
    from /home/travis/.rvm/gems/ruby-2.4.5/gems/dpl-1.10.13.travis.4141.5/lib/dpl/cli.rb:41:in `fold'
    from /home/travis/.rvm/gems/ruby-2.4.5/gems/dpl-1.10.13.travis.4141.5/lib/dpl/provider.rb:67:in `new'
    from /home/travis/.rvm/gems/ruby-2.4.5/gems/dpl-1.10.13.travis.4141.5/lib/dpl/cli.rb:31:in `run'
    from /home/travis/.rvm/gems/ruby-2.4.5/gems/dpl-1.10.13.travis.4141.5/lib/dpl/cli.rb:7:in `run'
    from /home/travis/.rvm/gems/ruby-2.4.5/gems/dpl-1.10.13.travis.4141.5/bin/dpl:5:in `<top (required)>'
    from /home/travis/.rvm/gems/ruby-2.4.5/bin/dpl:23:in `load'
    from /home/travis/.rvm/gems/ruby-2.4.5/bin/dpl:23:in `<main>'
    failed to deploy

Is this a known problem? If so, what do I do about it?

My guess is this is your problem:

$ rvm use default

Using /home/travis/.rvm/gems/ruby-2.5.3

I guess it is then installing dpl into 2.5.3 , and then the deploy is trying to use dpl from 2.4.5, but it isnt there.

Looks like uploads of this version had problems due to rubygems.org errors. https://travis-ci.org/travis-ci/dpl/jobs/560160344

We’ve published the latest pre-release gems. There is no reason to specifically use 1.10.13.travis.1414.5, so try using the edge pre-release now.