title: Installing Ensime for Scala Development on emacs: sbt.ResolveException: unresolved dependency: org.ensime#ensime-sbtt-cmd;0.12: not found
body: <p>I have placed the line:</p>
  
  <pre><code>addSbtPlugin("org.ensime" % "ensime-sbtt-cmd" % "0.12")
  </code></pre>
  
  <p>into my <code>~/.sbt/0.13/plugins/plugins.sbt</code></p>
  
  <p>But, when I try to run <code>sbt</code> within the root directory of my project, I get:</p>
  
  <pre><code>Loading /usr/share/sbt/bin/sbt-launch-lib.bash
  [info] Loading global plugins from /home/djg/.sbt/0.13/plugins
  [info] Updating {file:/home/djg/.sbt/0.13/plugins/}global-plugins...
  [info] Resolving org.ensime#ensime-sbtt-cmd;0.12 ...
  [warn]  module not found: org.ensime#ensime-sbtt-cmd;0.12
  [warn] ==== typesafe-ivy-releases: tried
  [warn]   http://repo.typesafe.com/typesafe/ivy-releases/org.ensime/ensime-sbtt-cmd/scala_2.10/sbt_0.13/0.12/ivys/ivy.xml
  [warn] ==== sbt-plugin-releases: tried
  [warn]   http://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/org.ensime/ensime-sbtt-cmd/scala_2.10/sbt_0.13/0.12/ivys/ivy.xml
  [warn] ==== local: tried
  [warn]   /home/djg/.ivy2/local/org.ensime/ensime-sbtt-cmd/scala_2.10/sbt_0.13/0.12/ivys/ivy.xml
  [warn] ==== public: tried
  [warn]   http://repo1.maven.org/maven2/org/ensime/ensime-sbtt-cmd_2.10_0.13/0.12/ensime-sbtt-cmd-0.12.pom
  [info] Resolving org.fusesource.jansi#jansi;1.4 ...
  [warn]  ::::::::::::::::::::::::::::::::::::::::::::::
  [warn]  ::          UNRESOLVED DEPENDENCIES         ::
  [warn]  ::::::::::::::::::::::::::::::::::::::::::::::
  [warn]  :: org.ensime#ensime-sbtt-cmd;0.12: 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-sbtt-cmd:0.12 (sbtVersion=0.13, scalaVersion=2.10)
  [warn] 
  sbt.ResolveException: unresolved dependency: org.ensime#ensime-sbtt-cmd;0.12: not found
      at sbt.IvyActions$.sbt$IvyActions$$resolve(IvyActions.scala:213)
      at sbt.IvyActions$$anonfun$update$1.apply(IvyActions.scala:122)
      at sbt.IvyActions$$anonfun$update$1.apply(IvyActions.scala:121)
      at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:116)
      at sbt.IvySbt$Module$$anonfun$withModule$1.apply(Ivy.scala:116)
      at sbt.IvySbt$$anonfun$withIvy$1.apply(Ivy.scala:104)
      at sbt.IvySbt.sbt$IvySbt$$action$1(Ivy.scala:51)
      at sbt.IvySbt$$anon$3.call(Ivy.scala:60)
      at xsbt.boot.Locks$GlobalLock.withChannel$1(Locks.scala:98)
      at xsbt.boot.Locks$GlobalLock.xsbt$boot$Locks$GlobalLock$$withChannelRetries$1(Locks.scala:81)
      at xsbt.boot.Locks$GlobalLock$$anonfun$withFileLock$1.apply(Locks.scala:102)
      at xsbt.boot.Using$.withResource(Using.scala:11)
      at xsbt.boot.Using$.apply(Using.scala:10)
      at xsbt.boot.Locks$GlobalLock.ignoringDeadlockAvoided(Locks.scala:62)
      at xsbt.boot.Locks$GlobalLock.withLock(Locks.scala:52)
      at xsbt.boot.Locks$.apply0(Locks.scala:31)
      at xsbt.boot.Locks$.apply(Locks.scala:28)
      at sbt.IvySbt.withDefaultLogger(Ivy.scala:60)
      at sbt.IvySbt.withIvy(Ivy.scala:101)
      at sbt.IvySbt.withIvy(Ivy.scala:97)
      at sbt.IvySbt$Module.withModule(Ivy.scala:116)
      at sbt.IvyActions$.update(IvyActions.scala:121)
      at sbt.Classpaths$$anonfun$sbt$Classpaths$$work$1$1.apply(Defaults.scala:1144)
      at sbt.Classpaths$$anonfun$sbt$Classpaths$$work$1$1.apply(Defaults.scala:1142)
      at sbt.Classpaths$$anonfun$doWork$1$1$$anonfun$73.apply(Defaults.scala:1165)
      at sbt.Classpaths$$anonfun$doWork$1$1$$anonfun$73.apply(Defaults.scala:1163)
      at sbt.Tracked$$anonfun$lastOutput$1.apply(Tracked.scala:35)
      at sbt.Classpaths$$anonfun$doWork$1$1.apply(Defaults.scala:1167)
      at sbt.Classpaths$$anonfun$doWork$1$1.apply(Defaults.scala:1162)
      at sbt.Tracked$$anonfun$inputChanged$1.apply(Tracked.scala:45)
      at sbt.Classpaths$.cachedUpdate(Defaults.scala:1170)
      at sbt.Classpaths$$anonfun$updateTask$1.apply(Defaults.scala:1135)
      at sbt.Classpaths$$anonfun$updateTask$1.apply(Defaults.scala:1113)
      at scala.Function1$$anonfun$compose$1.apply(Function1.scala:47)
      at sbt.$tilde$greater$$anonfun$$u2219$1.apply(TypeFunctions.scala:42)
      at sbt.std.Transform$$anon$4.work(System.scala:64)
      at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:237)
      at sbt.Execute$$anonfun$submit$1$$anonfun$apply$1.apply(Execute.scala:237)
      at sbt.ErrorHandling$.wideConvert(ErrorHandling.scala:18)
      at sbt.Execute.work(Execute.scala:244)
      at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:237)
      at sbt.Execute$$anonfun$submit$1.apply(Execute.scala:237)
      at sbt.ConcurrentRestrictions$$anon$4$$anonfun$1.apply(ConcurrentRestrictions.scala:160)
      at sbt.CompletionService$$anon$2.call(CompletionService.scala:30)
      at java.util.concurrent.FutureTask.run(FutureTask.java:262)
      at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
      at java.util.concurrent.FutureTask.run(FutureTask.java:262)
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      at java.lang.Thread.run(Thread.java:724)
  [error] (*:update) sbt.ResolveException: unresolved dependency: org.ensime#ensime-sbtt-cmd;0.12: not found
  Project loading failed: (r)etry, (q)uit, (l)ast, or (i)gnore? 
  </code></pre>
  
  <p>I was guessing the VERSION number was wrong, so I tried replacing <code>"0.12"</code> with <code>"0.13"</code>, and <code>"0.12-SNAPSHOT"</code>, but keep getting similar results.</p>
  
  <p>My goal is to use <code>ensime</code> with <code>emacs</code> to edit Scala code. What am I missing?</p>