Custom icons problem

Hi all, i’m just trying to reproduce the follow example

https://docs.jmix.io/jmix/flow-ui/icons/custom-icons.html#_icon_set

but i’m giving some errors

Error [ERR_PACKAGE_PATH_NOT_EXPORTED]: Package subpath ‘./parseAst’ is not defined by “exports” in vite.build

and

com.vaadin.flow.server.ExecutionFailedException: Vite build exited with a non zero status