Failure to resolve Scala Versions specific dependency

[ghost]

In our Build.scala file we are setting

scalaVersion := “2.10.2"

Further down the file, we declare the specs2 dependency like so

libraryDependencies ++= Seq( "org.specs2" %% "specs2" % "1.5" % “test” withSources() )

%% in this case denotes a Scala version specific dependency, omitting this information can result in lots of errors about invalid class files, etc.

We also use the sbt-idea SBT plugin to generate our Intellij configuration.

I fire up SBT, go to the console and issue the command, ‘test’.

The test classes are compiled and run, it works without problem.

I run gen-idea to generate my Intellij configuration, and open the project using Intellij.

Intellij flags all the code as red, it can’t find the specs2 dependency, although it can find all of it’s dependencies (scalaz etc).

I repeat this process ad-nauseum, trying different versions of specs2, deleting ~/.ivy and various system caches.

(I actually simplified the introduction, the test code started off broken which made things even more complicated).

Eventually I discovered that although SBT could correctly resolve the version of specs2 to add to the classpath , the sbt-idea plugin could not.

My temporary, hacky workaround is to declare the specs dependency in the following manner.

libraryDependencies ++= Seq( "org.specs2" % "specs2_2.10" % "2.3.4" withSources() )

Note how I specify the dependency as "org.specs2" % , the Scala version is now hard-coded and will break in the future.

[jozic]

as far as I can see specs2 1.5 was never compiled with scala 2.10

i think if you say "org.specs2" %% "specs2" % "2.3.4" withSources() it will work fine

[ghost]

It seems you are correct, I can no longer reproduce the issue.

[jozic]

good, let's close this issue then