Because core depends on redux_epics ^0.13.0 which depends on rxdart ^0.23.0, rxdart ^0.23.0 is required.
So, because core depends on rxdart ^0.24.0, version solving failed.
pub get failed (1; So, because core depends on rxdart ^0.24.0, version solving failed.)
Doesn't work with latest rxdart v0.24.0