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 Stack Overflow by Evgeniy
, 1 year ago
(List(),(a,1)) (of class scala.Tuple2)
scala.MatchError: (List(),(a,1)) (of class scala.Tuple2) at forcomp.A$A183$A$A183$$anonfun$subtract2$1.apply(temp.sc:11) at forcomp.A$A183$A$A183$$anonfun$subtract2$1.apply(temp.sc:11) at scala.collection.LinearSeqOptimized$class.foldLeft(temp.sc:120) at scala.collection.immutable.List.foldLeft(temp.sc:80) at forcomp.A$A183$A$A183.subtract2(temp.sc:11)