Ionic 4 navigation loding chunk error

Hi all,

I am trying Ionic 4 before migrating all my projects in v4 and i have a problem with routing. According to the documentation on routing, i am using this.router.navigate(['/device', {id: myId}]) in order to navigate on a new page (wich is empty for that moment)

With this code, my new page open, but i always get the following error in my chrome console :

I searched a lot but i found no solution…Someone get an idea ?