rom-mapper was moved back to core in 5.0.0 but there's still some code left that handles mapper component as if it was optional.
TODO
Simplify setup/configuration code so that it no longer uses :mapper plugin (simply move functionality of this plugin into core config/setup classes like it was before)
rom-mapperwas moved back to core in5.0.0but there's still some code left that handles mapper component as if it was optional.TODO
:mapperplugin (simply move functionality of this plugin into core config/setup classes like it was before)