Hello,
When using Pluggable Widget tools v9.9.3, the Circular Dependencies appear as Warnings and don’t block the build of the widget. What version are you using?
Is there an additional message in red, at the bottom of your console?
Webpack does work differently to rollup, so you could downgrade the widget by changing your global install of @mendix/generator-widget (npm uninstall and then reinstall with the version you want e.g. npm i @mendix/generator-widget@8.13.3)
But you would lose access to parts of the Pluggable widget API released in 9.
Joe