exception in MixExample

gistfile1.txt

key not found: 1
java.util.NoSuchElementException: key not found: 1
	at scala.collection.MapLike.default(MapLike.scala:235)
	at scala.collection.MapLike.default$(MapLike.scala:234)
	at scala.collection.AbstractMap.default(Map.scala:63)
	at scala.collection.mutable.HashMap.apply(HashMap.scala:69)
	at sigmastate.serialization.ValDefTypeStore.apply(ValDefTypeStore.scala:13)
	at sigmastate.serialization.ValUseSerializer.parseBody(ValUseSerializer.scala:18)
	at sigmastate.serialization.ValUseSerializer.parseBody(ValUseSerializer.scala:8)
	at sigmastate.serialization.ValueSerializer$.deserialize(ValueSerializer.scala:175)
	at sigmastate.utils.SigmaByteReader.getValue(SigmaByteReader.scala:23)
	at sigmastate.serialization.ProveDlogSerializer.parseBody(ProveDlogSerializer.scala:20)
	at sigmastate.serialization.ProveDlogSerializer.parseBody(ProveDlogSerializer.scala:11)
	at sigmastate.serialization.ValueSerializer$.deserialize(ValueSerializer.scala:175)
	at sigmastate.utils.SigmaByteReader.getValue(SigmaByteReader.scala:23)
	at sigmastate.serialization.DataSerializer$.deserialize(DataSerializer.scala:87)
	at sigmastate.serialization.ConstantSerializer.deserialize(ConstantSerializer.scala:31)
	at sigmastate.serialization.ErgoTreeSerializer.$anonfun$deserializeHeader$1(ErgoTreeSerializer.scala:58)
	at sigmastate.serialization.ErgoTreeSerializer.$anonfun$deserializeHeader$1$adapted(ErgoTreeSerializer.scala:57)
	at scala.collection.immutable.Range.foreach(Range.scala:158)
	at sigmastate.serialization.ErgoTreeSerializer.deserializeHeader(ErgoTreeSerializer.scala:57)
	at sigmastate.serialization.ErgoTreeSerializer.deserializeErgoTree(ErgoTreeSerializer.scala:31)
	at sigmastate.serialization.ErgoTreeSerializer.deserializeErgoTree(ErgoTreeSerializer.scala:27)
	at sigmastate.Values$ErgoTree$.fromProposition(Values.scala:781)
	at sigmastate.utxo.examples.MixExampleSpecification.$anonfun$new$1(MixExampleSpecification.scala:103)
	at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
	at org.scalatest.OutcomeOf.outcomeOf(OutcomeOf.scala:85)
	at org.scalatest.OutcomeOf.outcomeOf$(OutcomeOf.scala:83)
	at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
	at org.scalatest.Transformer.apply(Transformer.scala:22)
	at org.scalatest.Transformer.apply(Transformer.scala:20)
	at org.scalatest.PropSpecLike$$anon$1.apply(PropSpecLike.scala:186)
	at org.scalatest.TestSuite.withFixture(TestSuite.scala:196)
	at org.scalatest.TestSuite.withFixture$(TestSuite.scala:195)
	at sigmastate.utxo.examples.MixExampleSpecification.scalan$TestUtils$$super$withFixture(MixExampleSpecification.scala:20)
	at scalan.TestUtils.withFixture(TestUtils.scala:31)
	at scalan.TestUtils.withFixture$(TestUtils.scala:29)
	at sigmastate.utxo.examples.MixExampleSpecification.withFixture(MixExampleSpecification.scala:20)
	at org.scalatest.PropSpecLike.invokeWithFixture$1(PropSpecLike.scala:184)
	at org.scalatest.PropSpecLike.$anonfun$runTest$1(PropSpecLike.scala:196)
	at org.scalatest.SuperEngine.runTestImpl(Engine.scala:289)
	at org.scalatest.PropSpecLike.runTest(PropSpecLike.scala:196)
	at org.scalatest.PropSpecLike.runTest$(PropSpecLike.scala:178)
	at org.scalatest.PropSpec.runTest(PropSpec.scala:874)
	at org.scalatest.PropSpecLike.$anonfun$runTests$1(PropSpecLike.scala:229)
	at org.scalatest.SuperEngine.$anonfun$runTestsInBranch$1(Engine.scala:396)
	at scala.collection.immutable.List.foreach(List.scala:392)
	at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:384)
	at org.scalatest.SuperEngine.runTestsInBranch(Engine.scala:379)
	at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:461)
	at org.scalatest.PropSpecLike.runTests(PropSpecLike.scala:229)
	at org.scalatest.PropSpecLike.runTests$(PropSpecLike.scala:228)
	at org.scalatest.PropSpec.runTests(PropSpec.scala:874)
	at org.scalatest.Suite.run(Suite.scala:1147)
	at org.scalatest.Suite.run$(Suite.scala:1129)
	at org.scalatest.PropSpec.org$scalatest$PropSpecLike$$super$run(PropSpec.scala:874)
	at org.scalatest.PropSpecLike.$anonfun$run$1(PropSpecLike.scala:233)
	at org.scalatest.SuperEngine.runImpl(Engine.scala:521)
	at org.scalatest.PropSpecLike.run(PropSpecLike.scala:233)
	at org.scalatest.PropSpecLike.run$(PropSpecLike.scala:232)
	at org.scalatest.PropSpec.run(PropSpec.scala:874)
	at org.scalatest.tools.SuiteRunner.run(SuiteRunner.scala:45)
	at org.scalatest.tools.Runner$.$anonfun$doRunRunRunDaDoRunRun$13(Runner.scala:1346)
	at org.scalatest.tools.Runner$.$anonfun$doRunRunRunDaDoRunRun$13$adapted(Runner.scala:1340)
	at scala.collection.immutable.List.foreach(List.scala:392)
	at org.scalatest.tools.Runner$.doRunRunRunDaDoRunRun(Runner.scala:1340)
	at org.scalatest.tools.Runner$.$anonfun$runOptionallyWithPassFailReporter$24(Runner.scala:1031)
	at org.scalatest.tools.Runner$.$anonfun$runOptionallyWithPassFailReporter$24$adapted(Runner.scala:1010)
	at org.scalatest.tools.Runner$.withClassLoaderAndDispatchReporter(Runner.scala:1506)
	at org.scalatest.tools.Runner$.runOptionallyWithPassFailReporter(Runner.scala:1010)
	at org.scalatest.tools.Runner$.run(Runner.scala:850)
	at org.scalatest.tools.Runner.run(Runner.scala)
	at org.jetbrains.plugins.scala.testingSupport.scalaTest.ScalaTestRunner.runScalaTest2(ScalaTestRunner.java:131)
	at org.jetbrains.plugins.scala.testingSupport.scalaTest.ScalaTestRunner.main(ScalaTestRunner.java:28)