regisksc

I'm also experiencing this bug with Mocktail and Mockingjay. Changing sdk to 2.12.0 does not solve it. Error message: Invalid version constraint: Expected version number after ">=" in ">=2.12-0-0

> I would recommend removing `mocktail` from pub-cache and reinstalling. Also please ensure you're using the latest version of mocktail by checking the version in your `pubspec.lock`. > > If...