Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via GitHub by Dveim
, 1 year ago
an implementation is missing
via GitHub by yanns
, 1 year ago
via Stack Overflow by Denis N.
, 2 years ago
an implementation is missing
scala.NotImplementedError: an implementation is missing at scala.Predef$.$qmark$qmark$qmark(Predef.scala:225) at org.scalameta.ast.Reflection$XtensionAstType$$anonfun$publish$1.apply(Reflection.scala:84) at org.scalameta.ast.Reflection$XtensionAstType$$anonfun$publish$1.apply(Reflection.scala:81) at scala.reflect.internal.Types$Type$$anon$5.apply(Types.scala:764) at scala.reflect.internal.Types$Type$$anon$5.apply(Types.scala:763) at scala.collection.immutable.List.loop$1(List.scala:173) at scala.collection.immutable.List.mapConserve(List.scala:189) at scala.reflect.internal.tpe.TypeMaps$TypeMap.mapOver(TypeMaps.scala:115) at scala.reflect.internal.Types$Type$$anon$5.apply(Types.scala:764) at scala.reflect.internal.Types$Type.map(Types.scala:765) at scala.reflect.internal.Types$Type.map(Types.scala:260) at org.scalameta.ast.Reflection$XtensionAstType.publish(Reflection.scala:81) at scala.meta.internal.quasiquotes.ast.ConversionMacros.unliftApply(ConversionMacros.scala:69) at sun.reflect.GeneratedMethodAccessor69.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at scala.reflect.macros.runtime.JavaReflectionRuntimes$JavaReflectionResolvers$$anonfun$resolveJavaReflectionRuntime$2.apply(JavaReflectionRuntimes.scala:34) at scala.reflect.macros.runtime.JavaReflectionRuntimes$JavaReflectionResolvers$$anonfun$resolveJavaReflectionRuntime$2.apply(JavaReflectionRuntimes.scala:22) at scala.tools.nsc.typechecker.Macros$class.macroExpandWithRuntime(Macros.scala:756)