I've 2 projects in PhpStorm: one is working well while another won't work and I can't figure what make the first one working.
The first one is working well with library root for bower, npm and composer :
The second one is bower, npm are not detected as library root :

So the behaviour in PhpStorm is different, when I use the navigate file on second project, I see all the vendor file by default :
If I mark the directory as excluded, the ide don't understand the vendor class :

So how can we configure the IDE to mark a directory as library root ?

