Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256M; support was removed in 8.0

[JAVASCRIPT.DEVELOP.COM]

Hi, I`ll try to run your app in intellij idea 15:

"C:\Program Files\Java\jdk1.8.0_66\bin\java" -Dfile.encoding=UTF8 -Djline.terminal=none -Dsbt.log.noformat=true -Dsbt.global.base=C:\Users\win8.1\AppData\Local\Temp\sbt-global-plugin0stub -Xms512M -Xmx1024M -Xss1M -XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256M -classpath C:\Users\win8.1.IntelliJIdea15\config\plugins\Scala\launcher\sbt-launch.jar xsbt.boot.Boot run
[info] Loading project definition from C:\Examples\PLAY2\play2-auth\project
[info] Compiling 1 Scala source to C:\Examples\PLAY2\play2-auth\project\target\scala-2.10\sbt-0.13\classes...
[info] Set current project to root (in build file:/C:/Examples/PLAY2/play2-auth/)
java.lang.RuntimeException: No main class detected.
at scala.sys.package$.error(package.scala:27)
[trace] Stack trace suppressed: run 'last root/compile:run' for the full output.
error No main class detected.
[error] Total time: 0 s, completed 16.01.2016 9:33:03
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256M; support was removed in 8.0

Process finished with exit code 1