Question

I have a Play 2.1-SNAPSHOT based application that runs fine locally but when I try to deploy to Heroku I get the following error:

   [warn]   ::::::::::::::::::::::::::::::::::::::::::::::
   [warn]   ::          UNRESOLVED DEPENDENCIES         ::
   [warn]   ::::::::::::::::::::::::::::::::::::::::::::::
   [warn]   :: play#sbt-plugin;2.1-SNAPSHOT: not found
   [warn]   ::::::::::::::::::::::::::::::::::::::::::::::
   [warn]
   [warn]   Note: Some unresolved dependencies have extra attributes.  Check  that these dependencies exist with the requested

attributes.

My plugins.sbt file points to a local repository containing the 2.1-SNAPSHOT dependencies:

resolvers ++= Seq( 
  "Typesafe repository" at "http://repo.typesafe.com/typesafe/releases/",
  Resolver.file("My Repository", file( "repository/local") )
)

// Use the Play sbt plugin for Play projects
addSbtPlugin("play" % "sbt-plugin" % "2.1-SNAPSHOT")

The directory “repository/local” is checked into my GIT repository. It does look like SBT on Heroku is looking in the local repository since before the “Unresolved Dependency” error I see the following warnings:

   [warn] ==== Typesafe repository: tried
   [warn]   http://repo.typesafe.com/typesafe/releases/play/sbt-plugin_2.9.1_0.11.2/2.1-SNAPSHOT/sbt-plugin-2.1-SNAPSHOT.pom
   [warn] ==== My Repository: tried
   [warn] ==== heroku-sbt-typesafe: tried
   [warn] ==== heroku-central: tried

Running the command “play stage” locally finishes successfully.

Answer 1

Found the issue. I needed to declare “My Repository” as an Ivy repository by adding “Resolver.ivyStylePatterns” after the file resolver like this:

Resolver.file("My Repository", file( "repository/local/") )(Resolver.ivyStylePatterns)