Spark sql compilation error - branch 1.0.

error.log

java.lang.AssertionError: assertion failed: List(object package$DebugNode, object package$DebugNode)
	at scala.reflect.internal.Symbols$Symbol.suchThat(Symbols.scala:1678)
	at scala.reflect.internal.Symbols$ClassSymbol.companionModule0(Symbols.scala:2988)
	at scala.reflect.internal.Symbols$ClassSymbol.companionModule(Symbols.scala:2991)
	at scala.tools.nsc.backend.jvm.GenASM$JPlainBuilder.genClass(GenASM.scala:1371)
	at scala.tools.nsc.backend.jvm.GenASM$AsmPhase.run(GenASM.scala:120)
	at scala.tools.nsc.Global$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:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	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:99)
	at sbt.compiler.AggressiveCompile$$anonfun$3$$anonfun$compileScala$1$1.apply(AggressiveCompile.scala:99)
	at sbt.compiler.AggressiveCompile$$anonfun$3$$anonfun$compileScala$1$1.apply(AggressiveCompile.scala:99)
	at sbt.compiler.AggressiveCompile.sbt$compiler$AggressiveCompile$$timed(AggressiveCompile.scala:166)
	at sbt.compiler.AggressiveCompile$$anonfun$3.compileScala$1(AggressiveCompile.scala:98)
	at sbt.compiler.AggressiveCompile$$anonfun$3.apply(AggressiveCompile.scala:143)
	at sbt.compiler.AggressiveCompile$$anonfun$3.apply(AggressiveCompile.scala:87)
	at sbt.inc.IncrementalCompile$$anonfun$doCompile$1.apply(Compile.scala:39)
	at sbt.inc.IncrementalCompile$$anonfun$doCompile$1.apply(Compile.scala:37)
	at sbt.inc.IncrementalCommon.cycle(Incremental.scala:99)
	at sbt.inc.Incremental$$anonfun$1.apply(Incremental.scala:38)
	at sbt.inc.Incremental$$anonfun$1.apply(Incremental.scala:37)
	at sbt.inc.Incremental$.manageClassfiles(Incremental.scala:65)
	at sbt.inc.Incremental$.compile(Incremental.scala:37)
	at sbt.inc.IncrementalCompile$.apply(Compile.scala:27)
	at sbt.compiler.AggressiveCompile.compile2(AggressiveCompile.scala:157)
	at sbt.compiler.AggressiveCompile.compile1(AggressiveCompile.scala:71)
	at sbt.compiler.AggressiveCompile.apply(AggressiveCompile.scala:46)
	at sbt.Compiler$.apply(Compiler.scala:75)
	at sbt.Compiler$.apply(Compiler.scala:66)
	at sbt.Defaults$.sbt$Defaults$$compileTaskImpl(Defaults.scala:743)
	at sbt.Defaults$$anonfun$compileTask$1.apply(Defaults.scala:735)
	at sbt.Defaults$$anonfun$compileTask$1.apply(Defaults.scala:735)
	at scala.Function1$$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:745)