Why scala throws exception after command sbt run? -

don't understand why throws exceptions after command sbt run

i tried sbt clean , sbt update before

play.api.unexpectedexception: unexpected exception[applicationexception: error parsing: /api/details]         @ play.core.reloadableapplication$$anonfun$get$1$$anonfun$apply$1$$anon fun$1.apply(applicationprovider.scala:166) ~[play_2.11-2.3.7.jar:2.3.7]         @ play.core.reloadableapplication$$anonfun$get$1$$anonfun$apply$1$$anon fun$1.apply(applicationprovider.scala:130) ~[play_2.11-2.3.7.jar:2.3.7]         @ scala.option.map(option.scala:146) ~[scala-library-2.11.5.jar:na]         @ play.core.reloadableapplication$$anonfun$get$1$$anonfun$apply$1.apply (applicationprovider.scala:130) ~[play_2.11-2.3.7.jar:2.3.7]         @ play.core.reloadableapplication$$anonfun$get$1$$anonfun$apply$1.apply (applicationprovider.scala:128) ~[play_2.11-2.3.7.jar:2.3.7] caused by: core.exceptions.applicationexception: error parsing: /api/details         @ rest.details$$anonfun$request$1.apply(details.scala:62) ~[na:na]         @ rest.details$$anonfun$request$1.apply(details.scala:60) ~[na:na]         @ scala.util.success$$anonfun$map$1.apply(try.scala:236) ~[scala-librar y-2.11.5.jar:na]         @ scala.util.try$.apply(try.scala:191) ~[scala-library-2.11.5.jar:na]         @ scala.util.success.map(try.scala:236) ~[scala-library-2.11.5.jar:na] 

you need give more details context of issue looks there wrong in config/routes file.

you find documentation playframework routing here : https://www.playframework.com/documentation/2.4.x/scalarouting