rails aborted!
NameError: private constant # <Class:0x007f850e9f22a8>::HABTM_UStations referenced
/Users/sven/CARGO/rails_5.1/cargo_beta/db/seeds.rb:1:in `<top   (required)>'
bin/rails:4:in `require'
bin/rails:4:in `<main>'
Tasks: TOP => db:seed

Dealer::HABTM_UStations.create!([
{ustation_id: 7, dealer_id: 2}
])