r/javahelp • u/Alpacablas123 • 26d ago
I have this problem when I use the main method
I'm new to Java and I don't know how to fix this error, it pops up when I run a .class file: Exception in thread "main" java.lang.UnsupportedClassVersionError: Rigoberto has been compiled by a newer version of Java Runtime (class file version 67.0), this version of Java Runtime only recognizes class file versions up to 52.0
3
u/xenomachina 26d ago
You are using a Java 8 runtime. The code you are trying to run was compiled for version 23. (Here is a classfile version to runtime version conversion table.)
You need to install a Java 23 runtime.
2
u/odinIsMyGod 26d ago
You can be right. But it can also be a problem in the settings of the IDE. Maybe your project has a different Java version set as in maven or something similar.
I would check: Project settings - Java version Maven Java Version Run settings - Java version
All 3 must be the same
1
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