I seeing exactly the same issue as the op - gone through various attempts at debugging, definitely something to do with the q-autocomplete, if I remove it from the page everything is ok, as soon as I drop it back in I get the same error as the op. All of the exports are correct.

Disregard - that was my mistake - solution / problem was elsewhere.

forget, guys!

closing the q-card-title element twice

thanks to @BenoitRanque

@a47ae Very nice, the variable $top-bar-height is that something that is available automatically?