error when using esbuild

[caplod]

I am using esbuild together with jsbundling-rails to bundle the js files.
I added this to my routes.rb

mount MissionControl::Jobs::Engine, at: "/jobs"

when I access localhost:3000/jobs I get the following error:

Sprockets::Rails::Helper::AssetNotPrecompiledError in MissionControl::Jobs::Queues#index 

Asset `controllers/application.js` was not declared to be precompiled in production.
Declare links to your assets in `app/assets/config/manifest.js`.

  //= link controllers/application.js

and restart your server

in my manifest.js I have

//= link_tree ../images
//= link_tree ../builds

How can I run Mission Control Jobs without importmaps ?