Issue with Building

Question
1

I am getting the following error when I try to compile my project…

I am on scala 2.12.2 and jvm 1.8.133. I have tried pushing the stack size up to 8gigs via xss from within the build.sbt but I will receive this error. Can someone please give me some assistance?

Error:scalac: Error: java.lang.StackOverflowError
java.lang.StackOverflowError
at scala.reflect.internal.Trees$class.itransform(Trees.scala:1338)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:73)
at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:57)
at scala.reflect.internal.Trees$$anonfun$itransform$1.apply(Trees.scala:1357)
at scala.reflect.internal.Trees$$anonfun$itransform$1.apply(Trees.scala:1356)
at scala.reflect.api.Trees$Transformer.atOwner(Trees.scala:2600)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:30)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:25)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwner(TypingTransformers.scala:17)
at scala.reflect.internal.Trees$class.itransform(Trees.scala:1355)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:73)
at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:57)
at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2589)
at scala.reflect.api.Trees$Transformer$$anonfun$transformStats$1.apply(Trees.scala:2587)
at scala.collection.immutable.List.loop$1(List.scala:173)
at scala.collection.immutable.List.mapConserve(List.scala:189)
at scala.reflect.api.Trees$Transformer.transformStats(Trees.scala:2587)
at scala.reflect.internal.Trees$class.itransform(Trees.scala:1366)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:73)
at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:57)
at scala.reflect.internal.Trees$class.itransform(Trees.scala:1345)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:73)
at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:57)
at scala.reflect.internal.Trees$class.itransform(Trees.scala:1372)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transform(TypingTransformers.scala:44)
at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:73)
at scala.tools.nsc.transform.patmat.PatternMatching$MatchTransformer.transform(PatternMatching.scala:57)
at scala.reflect.internal.Trees$class.itransform(Trees.scala:1347)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16)
at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555)
at

2

I updated my stack to 8 gigs and now I receive a stack overflow with something in the refelect libraries of scala. Interestingly enough I am seeing this issue on stackoverflow as well. This is listed as a bug that is unresolved.

java.lang.StackOverflowError
at scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:714)
at scala.reflect.internal.tpe.TypeMaps$TypeMap.mapOver(TypeMaps.scala:123)
at scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:716)
at scala.reflect.internal.tpe.TypeMaps$TypeMap.mapOver(TypeMaps.scala:123)
at scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:716)
at scala.reflect.internal.tpe.TypeMaps$TypeMap.mapOver(TypeMaps.scala:123)
at scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:716)
at scala.reflect.internal.tpe.TypeMaps$TypeMap.mapOver(TypeMaps.scala:123)
at scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:716)
at scala.reflect.internal.tpe.TypeMaps$SubstMap.apply(TypeMaps.scala:685)
at scala.collection.immutable.List.loop$1(List.scala:173)

Does anyone know a workaround to this issue?

3

I see you cross-posted this to https://contributors.scala-lang.org/t/scala-compiler-bug-soe-on-scala-reflect-scala-bug/922 and there has been some discussion there.