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

Description :

• Java SE 8 = 52
• Java SE 7 = 51
• Java SE 6.0 = 50

Java 8 has major version 52, which means if we run javac command from Java 8 installation, it will by default generate a class with major version 52. However, if we run class file in JRE 7, we will get "Unsupported major.minor version 52.0".

Solution :

There was a mis configuration in %JAVA_HOME%

• java -version java version "1.8.0_45"

• javac -version javac 1.8.0_45

• @echo %JAVA_HOME% C:\Program Files\Java\jdk1.7.0_75

To set the path temporary

• set JAVA_HOME=C:\Program Files\Java\jdk1.8.0_45

• @echo %JAVA_HOME% C:\Program Files\Java\jdk1.8.0_45