- Create and name a virtual dataset (I created mine from a MySQL table)
- Using the advanced reflections menu add a raw reflection to the dataset and wait for the reflection to be generated.
- Rename the dataset.
- Using the reflections menu make a trivial change to the reflection (e.g. remove a column from “Display”) so that it is regenerated and press save.
- Reopen the reflections dialogue and you should see the message “There was an error in the Reflection pipeline.” at the top of the dialogue box.