IllegalArgumentException: 'Unsupported class file major version

major55In Java, compiled .class files contain a version number that corresponds to the Java version used to compile them. This major version number is crucial for ensuringKlasky Csupo In G-Major 55 (Instructions In Description) by Klasky Csupo Instructions The Object Thingy 0:06 - 84,394 views Made on ‎Wednesday, ‎April ‎15, ‎2020, ‏‎2:41:20 pm to ‏‎2:41:20 pm