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java.lang.NullPointerException: 	at scala.concurrent.Await$$anonfun$ready$1.apply(package.scala:95)	at scala.concurrent.Await$$anonfun$ready$1.apply(package.scala:95)	at scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53)	at scala.concurrent.Await$.ready(package.scala:95)	at scala.tools.nsc.interpreter.ILoop.processLine(ILoop.scala:402)	at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:430)	at Main$$anon$1.(repl.scala:14)	at Main$.main(repl.scala:1)	at Main.main(repl.scala)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at scala.reflect.internal.util.ScalaClassLoader$$anonfun$run$1.apply(ScalaClassLoader.scala:70)	at scala.reflect.internal.util.ScalaClassLoader$class.asContext(ScalaClassLoader.scala:31)	at scala.reflect.internal.util.ScalaClassLoader$URLClassLoader.asContext(ScalaClassLoader.scala:101)	at scala.reflect.internal.util.ScalaClassLoader$class.run(ScalaClassLoader.scala:70)	at scala.reflect.internal.util.ScalaClassLoader$URLClassLoader.run(ScalaClassLoader.scala:101)	at scala.tools.nsc.CommonRunner$class.run(ObjectRunner.scala:22)	at scala.tools.nsc.ObjectRunner$.run(ObjectRunner.scala:39)	at scala.tools.nsc.CommonRunner$class.runAndCatch(ObjectRunner.scala:29)	at scala.tools.nsc.ObjectRunner$.runAndCatch(ObjectRunner.scala:39)	at scala.tools.nsc.ScriptRunner.scala$tools$nsc$ScriptRunner$$runCompiled(ScriptRunner.scala:175)	at scala.tools.nsc.ScriptRunner$$anonfun$runScript$1.apply(ScriptRunner.scala:192)	at scala.tools.nsc.ScriptRunner$$anonfun$runScript$1.apply(ScriptRunner.scala:192)	at scala.tools.nsc.ScriptRunner$$anonfun$withCompiledScript$1$$anonfun$apply$mcZ$sp$1.apply(ScriptRunner.scala:161)	at scala.tools.nsc.ScriptRunner$$anonfun$withCompiledScript$1.apply$mcZ$sp(ScriptRunner.scala:161)	at scala.tools.nsc.ScriptRunner$$anonfun$withCompiledScript$1.apply(ScriptRunner.scala:129)	at scala.tools.nsc.ScriptRunner$$anonfun$withCompiledScript$1.apply(ScriptRunner.scala:129)	at scala.tools.nsc.util.package$.trackingThreads(package.scala:43)	at scala.tools.nsc.util.package$.waitingForThreads(package.scala:27)	at scala.tools.nsc.ScriptRunner.withCompiledScript(ScriptRunner.scala:128)	at scala.tools.nsc.ScriptRunner.runScript(ScriptRunner.scala:192)	at scala.tools.nsc.ScriptRunner.runScriptAndCatch(ScriptRunner.scala:205)	at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:67)	at scala.tools.nsc.MainGenericRunner.run$1(MainGenericRunner.scala:87)	at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:98)	at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:103)	at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala)