irb: warn: can't alias context from irb_context.

[pavelz]

When including guard-rspec and launching rails console the warning above shows up.

If of any help I've added rspec to test group and it generated the same message. I have rspec-rails in there and it seems to require rspec and does not produce the warning. guard-rails is required by default rails setup so I've decided that it is more relevant here. rspec-rails had same issue as well:

rspec-rails issue #1693

[ac21]

if you add a require: false, this seems to solve it. e.g.

# Gemfile
...
gem 'guard-rspec', '~> 4.7.3', require: false
...

this works for me in solving the problem.