Hi Artist Loco,
Thanks for taking the time to read our post. This tutorial was written with rxdart version 0.22.4. But, it can be easily converted to version 0.23.x. by following the instructions provided at this link:
In our subsequent posts about this topic, we will use the latest available version of rxdart (0.23.x.) so that the tutorials remain relevant and effective.
We hope this helps. Have a great day!