Hello! During the preview, rover dev still uses Router 1.0 by default, which doesn’t support Apollo Connectors. To use Router 2.0, you’ll set an environment variable:
APOLLO_KEY=... \
APOLLO_GRAPH_REF=... \
APOLLO_ROVER_DEV_ROUTER_VERSION=2.0.0-preview.4 \ # THIS
rover dev --supergraph-config supergraph.yaml
This is outlined in our quick start. We’ll be updating the default router version in a future release fo rover. Hope this helps!
(Apologies for the late response, I’m not sure why I only got notified today!)