I downloaded minecraft 1.17 through mineshafter launcher, and when I started the game it gave an error and took me to Game Output, saying the following:
Exception in thread "main" java.lang.UnsupportedClassVersionError: net/minecraft/client/main/Main has been compiled by a more recent version of the Java Runtime (class file version 60.0), this version of the Java Runtime only recognizes class file versions up to 52.0
[...]
Java HotSpot(TM) 64-Bit Server VM warning: Using incremental CMS is deprecated and will likely be removed in a future release
MC-227798
Minecraft 1.17 don't open
Resolved
Invalid
0
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