Why is console always in error ?

no matter what i do in a console, i get an error...




here is loading a file:

scala> :load c:/`playspace/FirstScala/first.scala

Loading c:\`playspace\FirstScala\first.scala...

x: Int = 4

<script>:3: error: value tools is not a member of package scala

  var value: scala.tools.nsc.InterpreterSettings = _

                   ^

<script>:4: error: value tools is not a member of package scala

  def set(x: Any) = value = x.asInstanceOf[scala.tools.nsc.InterpreterSettings]

                                                 ^

Exception in thread "main" java.util.NoSuchElementException: None.get

 at scala.None$.get(Option.scala:262)

 at scala.None$.get(Option.scala:260)

 at scala.tools.nsc.Interpreter.bind(Interpreter.scala:624)

 at scala.tools.nsc.Interpreter$$anonfun$quietBind$1.apply(Interpreter.scala:632)

 at scala.tools.nsc.Interpreter$$anonfun$quietBind$1.apply(Interpreter.scala:632)

 at scala.tools.nsc.Interpreter$$anonfun$beQuietDuring$2.apply(Interpreter.scala:171)

 at scala.util.control.Exception$Catch.apply(Exception.scala:79)

 at scala.tools.nsc.Interpreter.beQuietDuring(Interpreter.scala:169)

 at scala.tools.nsc.Interpreter.quietBind(Interpreter.scala:632)

 at scala.tools.nsc.Interpreter.recordRequest(Interpreter.scala:278)

 at scala.tools.nsc.Interpreter.loadAndRunReq$1(Interpreter.scala:586)

 at scala.tools.nsc.Interpreter.interpret(Interpreter.scala:599)

 at scala.tools.nsc.Interpreter.interpret(Interpreter.scala:577)

 at scala.tools.nsc.InterpreterLoop.reallyInterpret$1(InterpreterLoop.scala:472)

 at scala.tools.nsc.InterpreterLoop.interpretStartingWith(InterpreterLoop.scala:515)

 at scala.tools.nsc.InterpreterLoop.command(InterpreterLoop.scala:362)

 at scala.tools.nsc.InterpreterLoop.processLine$1(InterpreterLoop.scala:243)

 at scala.tools.nsc.InterpreterLoop.repl(InterpreterLoop.scala:249)

 at scala.tools.nsc.InterpreterLoop$$anonfun$interpretAllFrom$1.apply(InterpreterLoop.scala:260)

 at scala.tools.nsc.InterpreterLoop$$anonfun$interpretAllFrom$1.apply(InterpreterLoop.scala:257)

 at scala.tools.nsc.io.Streamable$Chars$class.applyReader(Streamable.scala:100)

 at scala.tools.nsc.io.File.applyReader(File.scala:62)

 at scala.tools.nsc.InterpreterLoop.interpretAllFrom(InterpreterLoop.scala:257)

 at scala.tools.nsc.InterpreterLoop$$anonfun$load$1.apply(InterpreterLoop.scala:303)

 at scala.tools.nsc.InterpreterLoop$$anonfun$load$1.apply(InterpreterLoop.scala:302)

 at scala.tools.nsc.InterpreterLoop.withFile(InterpreterLoop.scala:296)

 at scala.tools.nsc.InterpreterLoop.load(InterpreterLoop.scala:302)

 at scala.tools.nsc.InterpreterLoop$$anonfun$7.apply(InterpreterLoop.scala:204)

 at scala.tools.nsc.InterpreterLoop$$anonfun$7.apply(InterpreterLoop.scala:204)

 at scala.tools.nsc.InterpreterControl$OneArg.apply(InterpreterLoop.scala:53)

 at scala.tools.nsc.InterpreterControl$OneArg.apply(InterpreterLoop.scala:50)

 at scala.tools.nsc.InterpreterLoop.command(InterpreterLoop.scala:373)

 at scala.tools.nsc.InterpreterLoop.processLine$1(InterpreterLoop.scala:243)

 at scala.tools.nsc.InterpreterLoop.repl(InterpreterLoop.scala:249)

 at scala.tools.nsc.InterpreterLoop.main(InterpreterLoop.scala:559)

 at scala.tools.nsc.InterpreterLoop.main(InterpreterLoop.scala:610)

 at org.jetbrains.plugins.scala.compiler.rt.ConsoleRunner.main(ConsoleRunner.java:33)

 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

 at java.lang.reflect.Method.invoke(Method.java:597)

 at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)


Process finished with exit code 1


something else:


scala> val x = 5
x: Int = 5
<script>:3: error: value tools is not a member of package scala
  var value: scala.tools.nsc.InterpreterSettings = _
                   ^
<script>:4: error: value tools is not a member of package scala
  def set(x: Any) = value = x.asInstanceOf[scala.tools.nsc.InterpreterSettings]
                                                 ^
Exception in thread "main" java.util.NoSuchElementException: None.get
 at scala.None$.get(Option.scala:262)
 at scala.None$.get(Option.scala:260)
 at scala.tools.nsc.Interpreter.bind(Interpreter.scala:624)
 at scala.tools.nsc.Interpreter$$anonfun$quietBind$1.apply(Interpreter.scala:632)
 at scala.tools.nsc.Interpreter$$anonfun$quietBind$1.apply(Interpreter.scala:632)
 at scala.tools.nsc.Interpreter$$anonfun$beQuietDuring$2.apply(Interpreter.scala:171)
 at scala.util.control.Exception$Catch.apply(Exception.scala:79)
 at scala.tools.nsc.Interpreter.beQuietDuring(Interpreter.scala:169)
 at scala.tools.nsc.Interpreter.quietBind(Interpreter.scala:632)
 at scala.tools.nsc.Interpreter.recordRequest(Interpreter.scala:278)
 at scala.tools.nsc.Interpreter.loadAndRunReq$1(Interpreter.scala:586)
 at scala.tools.nsc.Interpreter.interpret(Interpreter.scala:599)
 at scala.tools.nsc.Interpreter.interpret(Interpreter.scala:577)
 at scala.tools.nsc.InterpreterLoop.reallyInterpret$1(InterpreterLoop.scala:472)
 at scala.tools.nsc.InterpreterLoop.interpretStartingWith(InterpreterLoop.scala:515)
 at scala.tools.nsc.InterpreterLoop.command(InterpreterLoop.scala:362)
 at scala.tools.nsc.InterpreterLoop.processLine$1(InterpreterLoop.scala:243)
 at scala.tools.nsc.InterpreterLoop.repl(InterpreterLoop.scala:249)
 at scala.tools.nsc.InterpreterLoop.main(InterpreterLoop.scala:559)
 at scala.tools.nsc.InterpreterLoop.main(InterpreterLoop.scala:610)
 at org.jetbrains.plugins.scala.compiler.rt.ConsoleRunner.main(ConsoleRunner.java:33)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at com.intellij.rt.execution.application.AppMain.main(AppMain.java:115)

Process finished with exit code 1



this is what the console says when it starts:

"C:\Program Files\Java\jdk1.6.0_05\bin\java" -Didea.launcher.port=7533 "-Didea.launcher.bin.path=C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 10.0.1\bin" -Dfile.encoding=UTF-8 -classpath "C:\`development\scala\lib\scala-compiler.jar;C:\`development\scala\lib\scala-library.jar;C:\Documents and Settings\alex.repede\.IntelliJIdea10\config\plugins\Scala\lib\scala-plugin-runners.jar;C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 10.0.1\lib\idea_rt.jar" com.intellij.rt.execution.application.AppMain org.jetbrains.plugins.scala.compiler.rt.ConsoleRunner -classpath "C:/Program Files/Java/jdk1.6.0_05/jre/lib/ext/localedata.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/management-agent.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/plugin.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/resources.jar;C:/`development/scala/lib/scala-swing.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/ext/sunmscapi.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/deploy.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/jsse.jar;C:/`development/scala/lib/scala-dbc.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/ext/dnsns.jar;C:/`development/scala/lib/scala-library.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/ext/sunpkcs11.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/javaws.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/jce.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/rt.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/ext/sunjce_provider.jar;C:/Program Files/Java/jdk1.6.0_05/jre/lib/charsets.jar;"

Welcome to Scala version 2.8.1.final (Java HotSpot(TM) Client VM, Java 1.6.0_05).

Type in expressions to have them evaluated.

Type :help for more information.


what do i keep getting these errors ? isn't the console supposed to keep on working ? not just run something and blow...
0
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Permanently deleted user

Looking at your classpath, there looks to be an extra backtick character included at in the scala-library and scala-compiler jars:
C:\`development\scala\lib\scala-compiler.jar;C:\`development\scala\lib\scala-library.jar

Try to update your library definition to remove that.

0
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Permanently deleted user

but i do have a folder named `development ... (with a backstick)   :)

0

Generally speaking, it's better to avoid using strange characters in library path.

Try to run Scala console without the IDE (from the command line) and check whether the problem persists.

0

It's broken with scala 2.8.1.final. I'll fix it.

Best regards,
Alexander Podkhalyuzin.

0

As workaround you can attach scala-compiler.jar to your classpath.
From next nightly, when you run console scala-compiler.jar will be attached automatically. (that's strange that scala 2.8.1 needs it for console)

Best regards,
Alexander Podkhalyuizn.

0
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ty

0

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