Hey, what am I doing wrong here?

$ dub list
(...)
glfw-drey 0.0.2: /Users/luismarques/.dub/packages/glfw-drey-0.0.2/
(...)

$ dub add-override glwtf-drey 0.0.2 ~/Projects/glwtf-drey/

$ dub build
Package override glwtf-drey 0.0.2 ->  /Users/luismarques/Projects/glwtf-drey/ doesn't reference an existing package.
Package override glwtf-drey 0.0.2 ->  /Users/luismarques/Projects/glwtf-drey/ doesn't reference an existing package.
Package override glwtf-drey 0.0.2 ->  /Users/luismarques/Projects/glwtf-drey/ doesn't reference an existing package.
Package override glwtf-drey 0.0.2 ->  /Users/luismarques/Projects/glwtf-drey/ doesn't reference an existing package.
Package override glwtf-drey 0.0.2 ->  /Users/luismarques/Projects/glwtf-drey/ doesn't reference an existing package.
Package override glwtf-drey 0.0.2 ->  /Users/luismarques/Projects/glwtf-drey/ doesn't reference an existing package.
(...)

$ head -n 2 /Users/luismarques/Projects/glwtf-drey/dub.json 
{
	"name": "glwtf-drey",