playframework 2.0 - Intellij Play make project error: not found: object Keys -

intellij idea 12.1, play 2.0.4

i got error running build...make project:

scala: not found: object keys import keys._ 

this existing play 2.0.4 project typically run eclipse , command line using "sbt ..." instead of "play ...". use paul sbt-extras script https://github.com/paulp/sbt-extras

plugins.sbt has line

addsbtplugin("play" % "sbt-plugin" % "2.0.4") 

the error in build.scala file has typical first few lines of play project like

import sbt._ import keys._ import playproject._ 

i think need specify play configuration home , working directory not sure put in them.

in case ran same issue, had few things.

note: using sbt version 0.11.3-2

1) plugins.sbt changes

• added resolver: "sbt-idea-repo" @ "http://mpeltonen.github.com/maven/",
• added sbt-idea plugin: addsbtplugin("com.github.mpeltonen" % "sbt-idea" % "1.1.0")
• downgraded play plugin 2.0.1: addsbtplugin("play" % "sbt-plugin" % "2.0.1")

2) sbt gen-idea

3) if error

scala: output path /users/rngu/ij/admin-tools/project/target/scala_2.9.1 shared between: module 'admin-tools-build' production, module 'admin-tools-build' tests external scala compiler prohibits output path sharing. either disable external build mode or configure separate output paths. tip: can use project artifacts combine compiled classes.

to fix this, intellij…file…project structure… add /classes output path, /test-classes test output path.

4) build...make project should work now.