Running in App Center Test - calabash/calabash-android GitHub Wiki

App Center Test (formally Xamarin Test Cloud)

The Calabash iOS and Android gems have removed their json and cucumber version restrictions. This allows users to upgrade their ruby stacks. App Center Test (formally Xamarin Test Cloud) users need to continue to use the older json and cucumber versions.

Add these entries to your Gemfile:

gem "json", "1.8.6"
gem "cucumber", "2.99.0"