[play2] org.slf4j#slf4j-api;1.7.7: configuration not found in org.slf4j#slf4j-api;1.7.7: 'compile'. It was required from org.slf4j#slf4j-simple;1.7.7 compile

play2 실행시 나타나는 에러러

org.slf4j#slf4j-api;1.7.7: configuration not found in org.slf4j#slf4j-api;1.7.7: 'compile'. It was required from org.slf4j#slf4j-simple;1.7.7 compile

 $ ./activator run

[info] Loading project definition from /mydev/scala-project/lab2/project

[info] Updating {file:/mydev/scala-project/lab2/project/}lab2-build...

[info] Resolving org.fusesource.jansi#jansi;1.4 ...

[warn] ::::::::::::::::::::::::::::::::::::::::::::::

[warn] :: UNRESOLVED DEPENDENCIES ::

[warn] ::::::::::::::::::::::::::::::::::::::::::::::

[warn] :: org.slf4j#slf4j-api;1.7.7: configuration not found in org.slf4j#slf4j-api;1.7.7: 'compile'. It was required from org.slf4j#slf4j-simple;1.7.7 compile

[warn] ::::::::::::::::::::::::::::::::::::::::::::::

sbt.ResolveException: unresolved dependency: org.slf4j#slf4j-api;1.7.7: configuration not found in org.slf4j#slf4j-api;1.7.7: 'compile'. It was required from org.slf4j#slf4j-simple;1.7.7 compile

at sbt.IvyActions$.sbt$IvyActions$$resolve(IvyActions.scala:217)

at sbt.IvyActions$$anonfun$update$1.apply(IvyActions.scala:126)

at sbt.IvyActions$$anonfun$update$1.apply(IvyActions.scala:125)

at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:115)

at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:115)

at sbt.IvySbt$$anonfun$withIvy$1.apply(Ivy.scala:103)

at sbt.IvySbt.sbt$IvySbt$$action$1(Ivy.scala:48)

at sbt.IvySbt$$anon$3.call(Ivy.scala:57)

이 문제는 play2가 ivy 를 사용하고 있는데. ivy dpendency 에 꼬인 문제가 발생했다. 

ivy 캐쉬를 모두 지우고 다시 실행한다.

$ rm -rf ~/.ivy2/

$ ./activator run

(성공)