minitest 5.2.3 is not compatible with ui-test-support.
Follow these steps:
- Check which versions on minitest and ui-test-support are installed with
gem list
- If minitest is greater than 5.x then we have a problem.
- Run this command
jruby -S gem uninstall minitest
- Edit your
Gemfile
and lock version of minitest to "<5" - Now do a
jruby -S bundle install
- It will install a compatible version of minitest with ui-test-support.