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POScala SBT: scala.tools.nsc isn't running
 

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    <p>I have a problem with <strong>scala.tools.sbt</strong></p> <p><strong>scala file</strong></p> <p>Here I used parser functionality to make abstract syntax tree of code <code>2 + 3</code></p> <pre><code>import scala.tools.nsc._ object Main extends App { var i = new Interpreter println(i.parse("2 + 3")) } </code></pre> <p><strong>SBT configuration</strong></p> <pre><code>name := "scalaSample" version := "1.0-SNAPSHOT" scalaVersion := "2.9.1" libraryDependencies += "org.scalatest" %% "scalatest" % "1.7.1" % "test" libraryDependencies += "org.scala-lang" % "scala-compiler" % "2.9.1" </code></pre> <p><strong>Error</strong></p> <blockquote> <p>Failed to initialize compiler: object scala not found. ** Note that as of 2.8 scala does not assume use of the java classpath. ** For the old behavior pass -usejavacp to scala, or if using a Settings ** object programatically, settings.usejavacp.value = true.</p> <p>[error] (run-main) java.lang.NullPointerException java.lang.NullPointerException at scala.tools.nsc.CompilationUnits$CompilationUnit. (CompilationUnits.scala:16) at scala.tools.nsc.interpreter.ExprTyper$codeParser$.applyRule(ExprTyper.scala:22) at scala.tools.nsc.interpreter.ExprTyper$codeParser$.stmts(ExprTyper.scala:36) at scala.tools.nsc.interpreter.ExprTyper$$anonfun$parse$2.apply(ExprTyper.scala:47) at scala.tools.nsc.interpreter.ExprTyper$$anonfun$parse$2.apply(ExprTyper.scala:46) at scala.tools.nsc.reporters.Reporter.withIncompleteHandler(Reporter.scala:46) at scala.tools.nsc.interpreter.ExprTyper$class.parse(ExprTyper.scala:46) at scala.tools.nsc.interpreter.IMain$exprTyper$.parse(IMain.scala:1012) at scala.tools.nsc.interpreter.IMain.parse(IMain.scala:1013) at eu.semantiq.scalaToJS.Main$delayedInit$body.apply(Main.scala:7) at scala.Function0$class.apply$mcV$sp(Function0.scala:34) at scala.runtime.AbstractFunction0.apply$mcV$sp(AbstractFunction0.scala:12) at scala.App$$anonfun$main$1.apply(App.scala:60) at scala.App$$anonfun$main$1.apply(App.scala:60) at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.scala:59) at scala.collection.immutable.List.foreach(List.scala:45) at scala.collection.generic.TraversableForwarder$class.foreach(TraversableForwarder.scala:30) at scala.App$class.main(App.scala:60) at eu.semantiq.scalaToJS.Main$.main(Main.scala:5) at eu.semantiq.scalaToJS.Main.main(Main.scala) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) java.lang.RuntimeException: Nonzero exit code: 1 at scala.sys.package$.error(package.scala:27)</p> </blockquote> <p><strong>In scala REPL everything works</strong></p> <blockquote> <p>Welcome to Scala version 2.9.0.1 (OpenJDK 64-Bit Server VM, Java 1.6.0_23). Type in expressions to have them evaluated. Type :help for more information.</p> <p>scala> <strong>import scala.tools.nsc._</strong></p> <p>import scala.tools.nsc._</p> <p>scala> <strong>var i = new Interpreter</strong></p> <p>warning: there were 4 deprecation warnings; re-run with -deprecation for details warning: there were 1 deprecation warnings; re-run with -deprecation for details</p> <p>i: scala.tools.nsc.Interpreter = scala.tools.nsc.Interpreter@786bfd73</p> <p>scala> <strong>println(i.parse("2 + 3"))</strong></p> <p><strong>Some(List(2.$plus(3)))</strong></p> </blockquote> <p>I feel really sorry for my bad English</p>
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