UnsupportedClassVersionError on running play application with JDK 1.7

Question

Just now started learning Play framework for my project requirement and my project only build on JDK 1.7 so I have downloaded Play 2.3.9 ve

Answer 1

52 = Java 8, 51 = Java 7.. On com.typesafe.config.ConfigException; so you have a too new library.