Варианты слайдов Scala

Я подписался на классы программирования Scala Functional Programming Coursera и работал с помощью начальных упражнений по настройке. Я столкнулся с этой проблемой.Варианты слайдов Scala

При попытке скомпилировать «привет мир» проект SBT Повсеместно терминал IntelliJ IDEA, я эта ошибка

[error]  while compiling: /home/vgorcinschi/Documents/ideaProjects/CourseraScalaOne/example/src/main/scala/example/ExampleApp.scala 
[error]   during phase: typer 
[error]  library version: version 2.10.4 
[error]  compiler version: version 2.10.4

есть больше к ней, но суть проблемы заключается в следующем - scalac установлен в 2.10. 4 (and everything 2.10.4 and less is not competible with Java 8), когда в build.sbt я поставил его в 2.12.1:

name := "example" 

version := "1.0" 

scalaVersion := "2.12.1" 

libraryDependencies += "org.scalactic" %% "scalactic" % "3.0.1" 

libraryDependencies += "org.scalatest" %% "scalatest" % "3.0.1" % "test" 

libraryDependencies ++= Seq(
    "org.scala-lang.modules" % "scala-xml_2.12" % "1.0.6", 
    "org.scala-lang" % "scala-reflect" % "2.12.1", 
    "org.scala-lang" % "scala-library" % "2.12.1" 
)

И это версия на пути к классам:

Однако даже пытается простой SCALA -version в терминале корня ШСМИ я использую старую версию:

[[email protected] example]$ scala -version 
Scala code runner version 2.10.4 -- Copyright 2002-2013, LAMP/EPFL 
[[email protected] example]$

Я поставил Scala домой к новому месту, но это не помощь:

[[email protected] ~]$ echo $SCALA_HOME 
/usr/local/scala-2.11.8/

Я работаю на Fedora 24. Любая помощь, как изменить место для Скале, scalac, scalap на моей ОС поможет, или же, как я могу гарантировать, что внутри проектов версия правильно Scala является используемый?

Советуйте, что я пытался this advice изменить расположение SCALA, но он не работал ни:

[[email protected] ~]$ sudo ln -s /usr/bin/scala /usr/local/scala-2.11.8/bin/scala 
[sudo] password for vgorcinschi: 
ln: failed to create symbolic link '/usr/local/scala-2.11.8/bin/scala': File exists

UPDATE

Это полный StackTrace (как называется с «последней компиляции: компилировать):

[debug] 
[debug] Initial source changes: 
[debug]   removed:Set() 
[debug]   added: Set(/home/vgorcinschi/Documents/ideaProjects/CourseraScalaOne/example/src/main/scala/example/ExampleApp.scala) 
[debug]   modified: Set() 
[debug] Removed products: Set() 
[debug] Modified external sources: Set() 
[debug] Modified binary dependencies: Set() 
[debug] Initial directly invalidated sources: Set(/home/vgorcinschi/Documents/ideaProjects/CourseraScalaOne/example/src/main/scala/example/ExampleApp.scala) 
[debug] 
[debug] Sources indirectly invalidated by: 
[debug]   product: Set() 
[debug]   binary dep: Set() 
[debug]   external source: Set() 
[debug] All initially invalidated sources: Set(/home/vgorcinschi/Documents/ideaProjects/CourseraScalaOne/example/src/main/scala/example/ExampleApp.scala) 
[debug] Recompiling all 1 sources: invalidated sources (1) exceeded 50.0% of all sources 
[info] Compiling 1 Scala source to /home/vgorcinschi/Documents/ideaProjects/CourseraScalaOne/example/target/scala-2.12/classes... 
[debug] Getting compiler-interface from component compiler for Scala 2.12.1 
[debug] Getting compiler-interface from component compiler for Scala 2.12.1 
[debug] Running cached compiler 6bac1d44, interfacing (CompilerInterface) with Scala compiler version 2.10.4 
[debug] Calling Scala compiler with arguments (CompilerInterface): 
[debug]   -bootclasspath 
[debug]   /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/resources.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/rt.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/jsse.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/jce.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/charsets.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/jfr.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/classes:/home/vgorcinschi/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-2.12.1.jar 
[debug]   -classpath 
[debug]   /home/vgorcinschi/Documents/ideaProjects/CourseraScalaOne/example/target/scala-2.12/classes:/home/vgorcinschi/.ivy2/cache/org.scalactic/scalactic_2.12/bundles/scalactic_2.12-3.0.1.jar:/home/vgorcinschi/.ivy2/cache/org.scala-lang/scala-reflect/jars/scala-reflect-2.12.1.jar:/home/vgorcinschi/.ivy2/cache/org.scala-lang.modules/scala-xml_2.12/bundles/scala-xml_2.12-1.0.6.jar 
[error] 
[error]  while compiling: /home/vgorcinschi/Documents/ideaProjects/CourseraScalaOne/example/src/main/scala/example/ExampleApp.scala 
[error]   during phase: typer 
[error]  library version: version 2.10.4 
[error]  compiler version: version 2.10.4 
[error] reconstructed args: -bootclasspath /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/resources.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/rt.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/jsse.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/jce.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/charsets.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/lib/jfr.jar:/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.111-5.b16.fc24.x86_64/jre/classes:/home/vgorcinschi/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-2.12.1.jar -classpath /home/vgorcinschi/Documents/ideaProjects/CourseraScalaOne/example/target/scala-2.12/classes:/home/vgorcinschi/.ivy2/cache/org.scalactic/scalactic_2.12/bundles/scalactic_2.12-3.0.1.jar:/home/vgorcinschi/.ivy2/cache/org.scala-lang/scala-reflect/jars/scala-reflect-2.12.1.jar:/home/vgorcinschi/.ivy2/cache/org.scala-lang.modules/scala-xml_2.12/bundles/scala-xml_2.12-1.0.6.jar 
[error] 
[error] last tree to typer: Literal(Constant(Hello, world!)) 
[error]    symbol: null 
[error] symbol definition: null 
[error]     tpe: String("Hello, world!") 
[error]  symbol owners: 
[error]  context owners: value <local ExampleApp> -> object ExampleApp -> package example 
[error] 
[error] == Enclosing template or block == 
[error] 
[error] Template(// val <local ExampleApp>: <notype> in object ExampleApp 
[error] "App" // parents 
[error] ValDef(
[error]  private 
[error]  "_" 
[error]  <tpt> 
[error]  <empty> 
[error] ) 
[error] // 2 statements 
[error] DefDef(// def <init>(): example.ExampleApp.type in object ExampleApp 
[error]  <method> 
[error]  "<init>" 
[error]  [] 
[error]  List(Nil) 
[error]  <tpt> // tree.tpe=example.ExampleApp.type 
[error]  Block(// tree.tpe=Unit 
[error]  Apply(// def <init>(): Object in class Object, tree.tpe=Object 
[error]   ExampleApp.super."<init>" // def <init>(): Object in class Object, tree.tpe=()Object 
[error]   Nil 
[error]  ) 
[error]  () 
[error] ) 
[error] ) 
[error] Apply(
[error]  "println" 
[error]  "Hello, world!" 
[error] ) 
[error]) 
[error] 
[error] == Expanded type of tree == 
[error] 
[error] ConstantType(value = Constant(Hello, world!)) 
[error] 
[error] uncaught exception during compilation: scala.reflect.internal.MissingRequirementError 
scala.reflect.internal.MissingRequirementError: class scala.annotation.serializable in compiler mirror not found. 
     at scala.reflect.internal.MissingRequirementError$.signal(MissingRequirementError.scala:16) 
     at scala.reflect.internal.MissingRequirementError$.notFound(MissingRequirementError.scala:17) 
     at scala.reflect.internal.Mirrors$RootsBase$$anonfun$getModuleOrClass$3.apply(Mirrors.scala:49) 
     at scala.reflect.internal.Mirrors$RootsBase$$anonfun$getModuleOrClass$3.apply(Mirrors.scala:49) 
     at scala.reflect.internal.Symbols$Symbol.orElse(Symbols.scala:2229) 
     at scala.reflect.internal.Mirrors$RootsBase.getModuleOrClass(Mirrors.scala:48) 
     at scala.reflect.internal.Mirrors$RootsBase.getModuleOrClass(Mirrors.scala:61) 
     at scala.reflect.internal.Mirrors$RootsBase.getClassByName(Mirrors.scala:99) 
     at scala.reflect.internal.Mirrors$RootsBase.getRequiredClass(Mirrors.scala:102) 
     at scala.reflect.internal.Mirrors$RootsBase.requiredClass(Mirrors.scala:105) 
     at scala.reflect.internal.Definitions$DefinitionsClass.SerializableAttr$lzycompute(Definitions.scala:962) 
     at scala.reflect.internal.Definitions$DefinitionsClass.SerializableAttr(Definitions.scala:962) 
     at scala.reflect.internal.Symbols$Symbol.isSerializable(Symbols.scala:720) 
     at scala.tools.nsc.typechecker.SyntheticMethods$class.needsReadResolve$1(SyntheticMethods.scala:324) 
     at scala.tools.nsc.typechecker.SyntheticMethods$class.extras$1(SyntheticMethods.scala:357) 
     at scala.tools.nsc.typechecker.SyntheticMethods$class.synthesize$1(SyntheticMethods.scala:367) 
     at scala.tools.nsc.typechecker.SyntheticMethods$$anonfun$addSyntheticMethods$2.apply(SyntheticMethods.scala:400) 
     at scala.tools.nsc.typechecker.SyntheticMethods$$anonfun$addSyntheticMethods$2.apply(SyntheticMethods.scala:398) 
     at scala.reflect.internal.Trees$class.deriveTemplate(Trees.scala:1610) 
     at scala.reflect.internal.SymbolTable.deriveTemplate(SymbolTable.scala:13) 
     at scala.tools.nsc.typechecker.SyntheticMethods$class.addSyntheticMethods(SyntheticMethods.scala:398) 
     at scala.tools.nsc.Global$$anon$1.addSyntheticMethods(Global.scala:493) 
     at scala.tools.nsc.typechecker.Typers$Typer.finishMethodSynthesis(Typers.scala:1848) 
     at scala.tools.nsc.typechecker.Typers$Typer.typedModuleDef(Typers.scala:1810) 
     at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5584) 
     at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5642) 
     at scala.tools.nsc.typechecker.Typers$Typer.scala$tools$nsc$typechecker$Typers$Typer$$typedStat$1(Typers.scala:2928) 
     at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$61.apply(Typers.scala:3032) 
     at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$61.apply(Typers.scala:3032) 
     at scala.collection.immutable.List.loop$1(List.scala:170) 
     at scala.collection.immutable.List.mapConserve(List.scala:186) 
     at scala.tools.nsc.typechecker.Typers$Typer.typedStats(Typers.scala:3032) 
     at scala.tools.nsc.typechecker.Typers$Typer.typedPackageDef$1(Typers.scala:5301) 
     at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:5587) 
     at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5642) 
     at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:5704) 
     at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.apply(Analyzer.scala:99) 
     at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:464) 
     at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3$$anonfun$run$1.apply(Analyzer.scala:91) 
     at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3$$anonfun$run$1.apply(Analyzer.scala:91) 
     at scala.collection.Iterator$class.foreach(Iterator.scala:727) 
     at scala.collection.AbstractIterator.foreach(Iterator.scala:1157) 
     at scala.tools.nsc.typechecker.Analyzer$typerFactory$$anon$3.run(Analyzer.scala:91) 
     at scala.tools.nsc.Global$Run.compileUnitsInternal(Global.scala:1583) 
     at scala.tools.nsc.Global$Run.compileUnits(Global.scala:1557) 
     at scala.tools.nsc.Global$Run.compileSources(Global.scala:1553) 
     at scala.tools.nsc.Global$Run.compile(Global.scala:1662) 
     at xsbt.CachedCompiler0.run(CompilerInterface.scala:123) 
     at xsbt.CachedCompiler0.run(CompilerInterface.scala:99) 
     at xsbt.CompilerInterface.run(CompilerInterface.scala:27) 
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
     at java.lang.reflect.Method.invoke(Method.java:498) 
     at sbt.compiler.AnalyzingCompiler.call(AnalyzingCompiler.scala:102) 
     at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:48) 
     at sbt.compiler.AnalyzingCompiler.compile(AnalyzingCompiler.scala:41) 
     at sbt.compiler.AggressiveCompile$$anonfun$3$$anonfun$compileScala$1$1.apply$mcV$sp(AggressiveCompile.scala:98) 
     at sbt.compiler.AggressiveCompile$$anonfun$3$$anonfun$compileScala$1$1.apply(AggressiveCompile.scala:98) 
     at sbt.compiler.AggressiveCompile$$anonfun$3$$anonfun$compileScala$1$1.apply(AggressiveCompile.scala:98) 
     at sbt.compiler.AggressiveCompile.sbt$compiler$AggressiveCompile$$timed(AggressiveCompile.scala:159) 
     at sbt.compiler.AggressiveCompile$$anonfun$3.compileScala$1(AggressiveCompile.scala:97) 
     at sbt.compiler.AggressiveCompile$$anonfun$3.apply(AggressiveCompile.scala:142) 
     at sbt.compiler.AggressiveCompile$$anonfun$3.apply(AggressiveCompile.scala:86) 
     at sbt.inc.IncrementalCompile$$anonfun$doCompile$1.apply(Compile.scala:38) 
     at sbt.inc.IncrementalCompile$$anonfun$doCompile$1.apply(Compile.scala:36) 
     at sbt.inc.Incremental$.cycle(Incremental.scala:73) 
     at sbt.inc.Incremental$$anonfun$1.apply(Incremental.scala:33) 
     at sbt.inc.Incremental$$anonfun$1.apply(Incremental.scala:32) 
     at sbt.inc.Incremental$.manageClassfiles(Incremental.scala:41) 
     at sbt.inc.Incremental$.compile(Incremental.scala:32) 
     at sbt.inc.IncrementalCompile$.apply(Compile.scala:26) 
     at sbt.compiler.AggressiveCompile.compile2(AggressiveCompile.scala:150) 
     at sbt.compiler.AggressiveCompile.compile1(AggressiveCompile.scala:70) 
     at sbt.compiler.AggressiveCompile.apply(AggressiveCompile.scala:45) 
     at sbt.Compiler$.apply(Compiler.scala:70) 
     at sbt.Defaults$.sbt$Defaults$$compileTaskImpl(Defaults.scala:736) 
     at sbt.Defaults$$anonfun$compileTask$1.apply(Defaults.scala:730) 
     at sbt.Defaults$$anonfun$compileTask$1.apply(Defaults.scala:730) 
     at scala.Function1$$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$2.call(CompletionService.scala:30) 
     at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) 
     at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
     at java.lang.Thread.run(Thread.java:745) 
[error] (compile:compile) scala.reflect.internal.MissingRequirementError: class scala.annotation.serializable in compiler mirror not found.

источник

2017-01-15 vasigorc

Вы можете запустить все через 'sbt'. Если вы хотите 'scala' для REPL, попробуйте' sbt console' вместо этого. Это заберет ваши настройки сборки. – Thilo

Он не взял версию сборки - точно такую же ошибку – vasigorc

, если вы 'cd' в каталог с' build.sbt' и запустите 'sbt console', он дает версию scala, отличную от той, что указана в' build .sbt'? – Thilo

И наконец - я не мог решить проблему. Я поднял вопрос с группой sbt github, и они отметили его как ошибку: https://github.com/sbt/sbt/issues/2923

Однако «bugged» rpm был 0.13.13, я не использовал его. Я использовал 0.13.13.1 (включая исправление), поэтому они все еще смотрят в нее. Поскольку мне пришлось продвигаться вперед с классом, я установил Ubuntu 16.04 вместо моей Fedora 24, где все работает без проблем.

источник

2017-01-20 15:02:43 vasigorc

Варианты слайдов Scala

ответ

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