I think that AbstractMethodError always means either mismatched scala version or out of date class file.
------------------------------------- Jeppe Nejsum Madsen<[email protected]> wrote: On Mon, Mar 1, 2010 at 3:39 PM, ojonam <[email protected]> wrote: > Hello all, > > I am trying to launch a lift web app on my computer, but trying to use > Snapshot 2.0 instead of 1.0 (which seems to have some problems with > Scala 2.7.7). > > I have taken the following steps : > > - tried to create a lift blank app with 2.0-snapshot, adapting the > archetype:generate command from the book as required Try to show the complete command. Or look in the ML for commands that work with 2.0-SNAPSHOT > - once that is done, I modify the version of scala in my pom.xml > - then I type 'mvn jetty:run' > - somehow maven still downloads *both* the 2.7.1 and 2.7.7 versions of > scala, and I get the warning that both of them exist This sounds bad.... > when trying to look at the webpage on localhost:8080, I am given the > following error : > > Request for / failed net.liftweb.http.SessionMaster$.mailbox_ > $eq(Lscala/actors/MessageQueue;)V > java.lang.AbstractMethodError: net.liftweb.http.SessionMaster$.mailbox_ > $eq(Lscala/actors/MessageQueue;)V > at scala.actors.Actor$class.$init$(Actor.scala:370) > at net.liftweb.http.SessionMaster$.<init>(LiftSession.scala:47) > at net.liftweb.http.SessionMaster$.<clinit>(LiftSession.scala) > at net.liftweb.http.LiftSession.setSession(LiftSession.scala:138) > at net.liftweb.http.LiftSession$.createSession(LiftSession.scala:34) > at net.liftweb.http.LiftSession$$anonfun$1.apply(LiftSession.scala: > 36) > at net.liftweb.http.LiftSession$$anonfun$1.apply(LiftSession.scala: > 36) > at net.liftweb.http.LiftSession$.apply(LiftSession.scala:39) > > > I have not posted the whole stacktrace, but will do so if necessary. > Googling for this error gives me messages that are very old, and they > don't apply to me. You may have old code laying around. If code mysteriously fails, "mvn clean" is your friend. Try; mvn clean jetty:run /Jeppe -- You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en. -- You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/liftweb?hl=en.
