superset 2.1.0 frontend start to use the "npm run dev-server", will appear many warnings

[gufenqing]

npm run dev-server will appear many warnings

I hope that will get the assistance to how to solves the warning and correctly see the superset page

[michael-s-molina]

Hi @gufenqing. Superset 2.x versions are not supported anymore. For that reason, I'm moving this to a discussion. I highly recommend upgrading your Superset version.