Descargué securesocial-master.zip dehttps://github.com/jaliss/securesocial/tree/master

1.Después de extraer, cambiar el directorio

cd C:\Users\ddd\play\securesocial-master

2.activador de ejecución

C:\Users\ddd\play\securesocial-master\activator run

El mensaje de error:

C:\Users\DDD\workspace\securesocial-master>activator run
[info] Loading project definition from C:\Users\DDD\workspace\securesocial-m
aster\project
[info] Set current project to SecureSocial-parent (in build file:/C:/Users/DDD
/workspace/securesocial-master/)
[info] Updating {file:/C:/Users/DDD/workspace/securesocial-master/}root...
[info] Resolving org.scala-lang#scala-library;2.11.1 ...
  [info] Resolving org.scala-lang#scala-compiler;2.11.1 ...
  [info] Resolving org.scala-lang#scala-reflect;2.11.1 ...
  [info] Resolving org.scala-lang.modules#scala-xml_2.11;1.0.2 ...
  [info] Resolving org.scala-lang.modules#scala-parser-combinators_2.11;1.0.1 ..
.
  [info] Resolving jline#jline;2.11 ...
[info] Done updating.
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] (root/compile:run) No main class detected.
[error] Total time: 0 s, completed Jun 1, 2015 10:02:06 AM