Using Play!Framework 2.2 subprojects - playframework-2.2

Question

I'm trying to split my Play!Framework 2.2 project in subprojects and I have some hard time figuring it out.
Here's my folder structure :
MyProject/
| - app/
| --- controllers/ # containing some main controllers
| --- views/ # resulting views
| - build.sbt # see after
| - conf/
| --- application.conf
| --- routes
| --- modules/ # My modules folder, aka sub projects
| -------- common/
| ------------ app/
| --------------- models/ # The models
| --------------- utils/
| -------- api/
| -------- web/
| ------------ app/ # some controllers/views
| ------------ conf/ # routes mainly
| ------------ app/ # some controllers/views
| ------------ conf/ # routes mainly
(I simplified it).
The main routes file :
# Routes
# This file defines all application routes (Higher priority routes first)
# ~~~~
# Home page
GET / controllers.StaticPages.index()
# Web
-> /html/v1 web.Routes
# API
-> /api/v1 api.Routes
web.routes :
# HTML Engine renderer
# ~~~~~~~~~~~~~~~~~~~~
GET /users controllers.Users.list()
api.routes :
# API
# ~~~~~~~~~~~~~~~~~~~~
GET /users controllers.Users.list()
And finally, my build.sbt
import play.Project._
name := "My project"
version := "1.0-alpha"
libraryDependencies ++= Seq(
javaJdbc,
javaEbean,
cache,
"mysql" % "mysql-connector-java" % "5.1.25",
"com.typesafe" %% "play-plugins-mailer" % "2.2.0"
)
play.Project.playJavaSettings
lazy val root = project.in(file("."))
.dependsOn(common, web, api)
.aggregate(common, web, api)
lazy val web = project.in(file("modules/web"))
.dependsOn(common)
lazy val api = project.in(file("modules/api"))
.dependsOn(common)
lazy val common = project.in(file("modules/common"))
When cleaning/compiling and running, I face this error :
not found: value web
In /path/to/project/conf/routes at line 20.
-> /html/v1 web.Routes
If I remove the -> in the main routes file, Play! cannot find the package utils in common.
So I guess common, web and api aren't loaded, but why?
Update
Since #James-roper helped me found the problem, I created a Github repository that shows a simple Play!Framework 2.2 project with sub projects. You can find it here : https://github.com/cnicodeme/play2.2-subproject

Answer 1

Your sub projects need to use different package names, at the moment they are conflicting.