Solved Problem starting PaperMC RaspberryPi.

[Fabs_gb]

I am using the Folowing command to start the server: "java -Xms5120M -Xmx5120M -jar /home/fabsgb/CraftsOfTheForgotten/paper-1.21.3-81.jar" but im only getting
"Downloading mojang_1.21.3.jar
Applying patches
Starting org.bukkit.craftbukkit.Main
Exception in thread "ServerMain" java.lang.UnsupportedClassVersionError: org/bukkit/craftbukkit/Main has been compiled by a more recent version of the Java Runtime (class file version 65.0), this version of the Java Runtime only recognizes class file versions up to 61.0
at java.base/java.lang.ClassLoader.defineClass1(Native Method)
at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)
at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:150)
at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:524)
at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:427)
at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:421)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:712)
at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:420)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:592)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:467)
at io.papermc.paperclip.Paperclip.lambda$main$0(Paperclip.java:38)
at java.base/java.lang.Thread.run(Thread.java:840)"
As erreor. Please help!

 

[stefvanschie]

You are running Java 17, but you need at least Java 21 to run the server. You should update your Java installation.

 

[Fabs_gb]

You are running Java 17, but you need at least Java 21 to run the server. You should update your Java installation.

How can i update Java

 

[mbaxter]

Uninstall Java 17. Install Java 21: https://docs.papermc.io/misc/java-install

 

[Fabs_gb]

Now evrythingsworking fine Thanks