Scala SBT refresh error -

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when trying add akka dependency using sbt getting below error,

error:error while importing sbt project: ...     @ sbt.mainloop$$anonfun$runwithnewlog$1.apply(mainloop.scala:66) java hotspot(tm) 64-bit server vm warning: ignoring option maxpermsize=384m; support removed in 8.0     @ sbt.using.apply(using.scala:25)     @ sbt.mainloop$.runwithnewlog(mainloop.scala:66)     @ sbt.mainloop$.runandclearlast(mainloop.scala:49)     @ sbt.mainloop$.runloggedloop(mainloop.scala:33)     @ sbt.mainloop$.runlogged(mainloop.scala:25)     @ sbt.standardmain$.runmanaged(main.scala:57)     @ sbt.xmain.run(main.scala:29)     @ xsbt.boot.launch$$anonfun$run$1.apply(launch.scala:109)     @ xsbt.boot.launch$.withcontextloader(launch.scala:129)     @ xsbt.boot.launch$.run(launch.scala:109)     @ xsbt.boot.launch$$anonfun$apply$1.apply(launch.scala:36)     @ xsbt.boot.launch$.launch(launch.scala:117)     @ xsbt.boot.launch$.apply(launch.scala:19)     @ xsbt.boot.boot$.runimpl(boot.scala:44)     @ xsbt.boot.boot$.main(boot.scala:20)     @ xsbt.boot.boot.main(boot.scala) [error] couldn't run: scopedkey(scope(select(projectref(file:/e:/personal/scala%20workspace/akkatest/,akkatest)),this,this,this),update) [error] use 'last' full log.

don't know why getting error.

i have deleted existing .ivy folder manually , rerun sbt still having issue.

i using scala 2.11.7 , java 8.


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