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i have minecraft version 1.16.4 on my pc. OS is windows 10. today I wanted to get new major update. when i run the launcher i got the error that said "minecraft does not detect java". so i uninstalled minecraft and java. i installed them again. but now after update i get this java error:

   [E] Error: A JNI error has occurred, please check your installation and try again
   [E] 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

what should i do to fix this? (if any further information is needed please comment so i add them to my question)

minecraft launcher is ExtremeLauncher 3.9.5.0. i have javaRE 8.291 and javaDK 16 installed on my pc.

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    If you're trying to get 1.17, Java 16 (JDK/JRE16) is required. Also you never stated what launcher you were using. The default launcher by mojang would have solved this issue for you since it bundles the java versions required. – Phoenix Jun 9 at 15:47
  • @Phoenix I don't know what version my launcher is but i will add it to my question when i get home. actually when i ran into first error the launcher redirected me to a website to download java. but it had problems while redirecting so i could not see what version it wanted. – BlackCrystal Jun 10 at 3:00
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    You are running the code with Java 8 (class version 52) but it requires Java 16 (class version 60). – greg-449 Jun 10 at 6:44
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thanks to @Phoenix and @greg-449 for answering.

I searched a little bit and saw this video: "www.youtube.com/watch?v=kehS3GkHiFM"

it solved my problem. for anyone that may face this problem, actually you should change java address in your launcher to something like this> C:\Program Files\Java\jdk-16\bin\javaw.exe

brows your pc for right address before changing.

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