Installing ensime in existing project cannot resolve dependency

StackOverflow https://stackoverflow.com/questions/20209479

Question

I started an android project in scala recently, I'm an emacs nerd, and I wanted to use ensime in emacs instead of IntelliJ. Per the installation instructions, and this post:

Installing Ensime for Scala Development on emacs: sbt.ResolveException: unresolved dependency: org.ensime#ensime-sbtt-cmd;0.12: not found

my ~/.sbt/plugins/plugins.sbt looks like this:

resolvers += "Sonatype releases" at "https://oss.sonatype.org/content/repositories/snapshots"

addSbtPlugin("org.ensime" % "ensime-sbt-cmd" % "0.1.2")

and my project's project/plugins.sbt looks like this:

addSbtPlugin("org.scala-sbt" % "sbt-android" % "0.7.1-SNAPSHOT")

(though I don't think that's related).

When I run sbt, the output looks like the following:

[info] Loading global plugins from /Users/jmiles/.sbt/plugins
[info] Updating {file:/Users/jmiles/.sbt/plugins/}default-bdeac8...
[info] Resolving org.ensime#ensime-sbt-cmd;0.1.2 ...
[warn]  module not found: org.ensime#ensime-sbt-cmd;0.1.2
[warn] ==== typesafe-ivy-releases: tried
[warn]   http://repo.typesafe.com/typesafe/ivy-releases/org.ensime/ensime-sbt-cmd/scala_2.9.2/sbt_0.12/0.1.2/ivys/ivy.xml
[warn] ==== sbt-plugin-releases: tried
[warn]   http://scalasbt.artifactoryonline.com/scalasbt/sbt-plugin-releases/org.ensime/ensime-sbt-cmd/scala_2.9.2/sbt_0.12/0.1.2/ivys/ivy.xml
[warn] ==== local: tried
[warn]   /Users/jmiles/.ivy2/local/org.ensime/ensime-sbt-cmd/scala_2.9.2/sbt_0.12/0.1.2/ivys/ivy.xml
[warn] ==== Sonatype releases: tried
[warn]   https://oss.sonatype.org/content/repositories/snapshots/org/ensime/ensime-sbt-cmd_2.9.2_0.12/0.1.2/ensime-sbt-cmd-0.1.2.pom
[warn] ==== public: tried
[warn]   http://repo1.maven.org/maven2/org/ensime/ensime-sbt-cmd_2.9.2_0.12/0.1.2/ensime-sbt-cmd-0.1.2.pom
[info] Resolving org.scala-sbt#precompiled-2_10_0-m7;0.12.1 ...
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  ::          UNRESOLVED DEPENDENCIES         ::
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn]  :: org.ensime#ensime-sbt-cmd;0.1.2: not found
[warn]  ::::::::::::::::::::::::::::::::::::::::::::::
[warn] 
[warn]  Note: Some unresolved dependencies have extra attributes.  Check that these dependencies exist with the requested attributes.
[warn]      org.ensime:ensime-sbt-cmd:0.1.2 (sbtVersion=0.12, scalaVersion=2.9.2)
[warn] 
sbt.ResolveException: unresolved dependency: org.ensime#ensime-sbt-cmd;0.1.2: not found
    at sbt.IvyActions$.sbt$IvyActions$$resolve(IvyActions.scala:214)
    at sbt.IvyActions$$anonfun$update$1.apply(IvyActions.scala:122)
    at sbt.IvyActions$$anonfun$update$1.apply(IvyActions.scala:121)
    at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:114)
    at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:114)
    at sbt.IvySbt$$anonfun$withIvy$1.apply(Ivy.scala:102)
    at sbt.IvySbt.liftedTree1$1(Ivy.scala:49)

        (etc.)

Any help?

Was it helpful?

Solution

I get this all the time with dependencies. While I have no explanation for it, here are the common patterns that recur over and over.

Often, the code given by the plugin/library developer is wrong. When I go to their maven repository the version they have listed doesn't exist in the repository. I just update it to the right version and then boom it works. Also, for some reason some plugins work when I put them in plugins.sbt (the suggested place). While others only work if I stick them in project/build.sbt. It doesn't make sense, but as soon as I move it there it suddenly installs and runs. Combined dependency listings. If you are hacking stuff together and stick a dependency in both build.scala and build.sbt, it will throw a generic error that is completely unhelpful. Remove one or the other and suddenly it runs.

Also keep in mind that % causes a scala version to be appended to the name of it. whereas %% defines the name explicitly. Sometimes this causes errors when using % because it doesn't have a version available for that scala version. Go to the repository and enter the name of the package explicitly to fix this.

OTHER TIPS

ensime 0.1.2 is only for sbt version 0.13.x. If this is a new project, you might consider using the current version of sbt. Typically you'd do this by creating project/build.properties that contains sbt.version=0.13.0

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