Cannot install Lavalink

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1

I tried to install Lavalink on my project but I get this error about Java. How can I fix this?

2020-05-30 15:17:02.342  WARN 8504 --- [kground-preinit] o.s.h.c.j.Jackson2ObjectMapperBuilder    : For Jackson Kotlin classes support please add "com.fasterxml.jackson.module:jackson-module-kotlin" to the classpath
2020-05-30 15:17:02.379 ERROR 8504 --- [           main] lavalink.server.Launcher                 : Application failed

java.lang.UnsupportedClassVersionError: lavalink/server/info/AppInfo has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
        at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_212]
        at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[na:1.8.0_212]
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.8.0_212]
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:468) ~[na:1.8.0_212]
        at java.net.URLClassLoader.access$100(URLClassLoader.java:74) ~[na:1.8.0_212]
        at java.net.URLClassLoader$1.run(URLClassLoader.java:369) ~[na:1.8.0_212]
        at java.net.URLClassLoader$1.run(URLClassLoader.java:363) ~[na:1.8.0_212]
        at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_212]
        at java.net.URLClassLoader.findClass(URLClassLoader.java:362) ~[na:1.8.0_212]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_212]
        at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:93) ~[Lavalink.jar:na]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_212]
        at lavalink.server.Launcher.getVersionInfo(Launcher.kt:50) [classes!/:na]
        at lavalink.server.Launcher.getVersionInfo$default(Launcher.kt:49) [classes!/:na]
        at lavalink.server.Launcher$main$1.onApplicationEvent(Launcher.kt:118) ~[classes!/:na]
        at lavalink.server.Launcher$main$1.onApplicationEvent(Launcher.kt:43) ~[classes!/:na]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.1.9.RELEASE.jar!/:5.1.9.RELEASE]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.1.9.RELEASE.jar!/:5.1.9.RELEASE]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.1.9.RELEASE.jar!/:5.1.9.RELEASE]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) ~[spring-context-5.1.9.RELEASE.jar!/:5.1.9.RELEASE]
        at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:76) ~[spring-boot-2.1.8.RELEASE.jar!/:2.1.8.RELEASE]
        at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53) ~[spring-boot-2.1.8.RELEASE.jar!/:2.1.8.RELEASE]
        at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:342) ~[spring-boot-2.1.8.RELEASE.jar!/:2.1.8.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) ~[spring-boot-2.1.8.RELEASE.jar!/:2.1.8.RELEASE]
        at lavalink.server.Launcher.main(Launcher.kt:127) [classes!/:na]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_212]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_212]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_212]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_212]
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [Lavalink.jar:na]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [Lavalink.jar:na]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:51) [Lavalink.jar:na]
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:52) [Lavalink.jar:na]

2020-05-30 15:17:02.382 ERROR 8504 --- [           main] o.s.boot.SpringApplication               : Application run failed

java.lang.UnsupportedClassVersionError: lavalink/server/info/AppInfo has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
        at java.lang.ClassLoader.defineClass1(Native Method) ~[na:1.8.0_212]
        at java.lang.ClassLoader.defineClass(ClassLoader.java:763) ~[na:1.8.0_212]
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[na:1.8.0_212]
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:468) ~[na:1.8.0_212]
        at java.net.URLClassLoader.access$100(URLClassLoader.java:74) ~[na:1.8.0_212]
        at java.net.URLClassLoader$1.run(URLClassLoader.java:369) ~[na:1.8.0_212]
        at java.net.URLClassLoader$1.run(URLClassLoader.java:363) ~[na:1.8.0_212]
        at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_212]
        at java.net.URLClassLoader.findClass(URLClassLoader.java:362) ~[na:1.8.0_212]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_212]
        at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:93) ~[Lavalink.jar:na]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_212]
        at lavalink.server.Launcher.getVersionInfo(Launcher.kt:50) [classes!/:na]
        at lavalink.server.Launcher.getVersionInfo$default(Launcher.kt:49) [classes!/:na]
        at lavalink.server.Launcher$main$1.onApplicationEvent(Launcher.kt:118) ~[classes!/:na]
        at lavalink.server.Launcher$main$1.onApplicationEvent(Launcher.kt:43) ~[classes!/:na]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) ~[spring-context-5.1.9.RELEASE.jar!/:5.1.9.RELEASE]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) ~[spring-context-5.1.9.RELEASE.jar!/:5.1.9.RELEASE]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) ~[spring-context-5.1.9.RELEASE.jar!/:5.1.9.RELEASE]
        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) ~[spring-context-5.1.9.RELEASE.jar!/:5.1.9.RELEASE]
        at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:76) ~[spring-boot-2.1.8.RELEASE.jar!/:2.1.8.RELEASE]
        at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:53) ~[spring-boot-2.1.8.RELEASE.jar!/:2.1.8.RELEASE]
        at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:342) ~[spring-boot-2.1.8.RELEASE.jar!/:2.1.8.RELEASE]
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:305) ~[spring-boot-2.1.8.RELEASE.jar!/:2.1.8.RELEASE]
        at lavalink.server.Launcher.main(Launcher.kt:127) [classes!/:na]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_212]
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_212]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_212]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_212]
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [Lavalink.jar:na]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [Lavalink.jar:na]
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:51) [Lavalink.jar:na]
        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:52) [Lavalink.jar:na]
2

@Str0ck3d There are multiple topics about installing it here, you see, as the error says, the Java run on here is not the same that Lavalink was made with. Please check the other topics for workarounds

Eddie

1 Like
3

I still don’t know how can I fix this :frowning:

4

Lavalink require java 13