Massive error message when running Minecraft

[Xiphias]

Recently I wanted to try and create a Mod for Minecraft as I had run out of ideas for things to program

 

I was following a tutorial for modding in 1.12.2 ( ), and had got to the part where I needed to run the mod. I have previously followed this tutorial on my previous laptop and everything worked fine, however this time a massive error message appeared.

 

The only difference I could think of between the last time tried modding was that I have changed my Laptop. I used to use a Windows 10 laptop and changed to Linux for my new one.

I use Manjaro as the distro btw.

 

The error message is as below:

java.lang.reflect.InvocationTargetException: null
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_242]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_242]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_242]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_242]
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_242]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_242]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_242]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_242]
	at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97) [start/:?]
	at GradleStart.main(GradleStart.java:25) [start/:?]
Caused by: java.lang.ExceptionInInitializerError
	at org.lwjgl.LinuxSysImplementation.<clinit>(LinuxSysImplementation.java:50) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
	at org.lwjgl.Sys.createImplementation(Sys.java:131) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
	at org.lwjgl.Sys.<clinit>(Sys.java:116) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
	at net.minecraft.client.Minecraft.getSystemTime(Minecraft.java:3158) ~[Minecraft.class:?]
	at net.minecraft.client.main.Main.main(Main.java:42) ~[Main.class:?]
	... 12 more
Caused by: java.lang.NullPointerException
	at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1847) ~[?:1.8.0_242]
	at java.lang.Runtime.loadLibrary0(Runtime.java:871) ~[?:1.8.0_242]
	at java.lang.System.loadLibrary(System.java:1124) ~[?:1.8.0_242]
	at java.awt.Toolkit$3.run(Toolkit.java:1636) ~[?:1.8.0_242]
	at java.awt.Toolkit$3.run(Toolkit.java:1634) ~[?:1.8.0_242]
	at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_242]
	at java.awt.Toolkit.loadLibraries(Toolkit.java:1633) ~[?:1.8.0_242]
	at java.awt.Toolkit.<clinit>(Toolkit.java:1670) ~[?:1.8.0_242]
	at org.lwjgl.LinuxSysImplementation.<clinit>(LinuxSysImplementation.java:50) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
	at org.lwjgl.Sys.createImplementation(Sys.java:131) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
	at org.lwjgl.Sys.<clinit>(Sys.java:116) ~[lwjgl-2.9.4-nightly-20150209.jar:?]
	at net.minecraft.client.Minecraft.getSystemTime(Minecraft.java:3158) ~[Minecraft.class:?]
	at net.minecraft.client.main.Main.main(Main.java:42) ~[Main.class:?]
	... 12 more
Exception in thread "main" [15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: java.lang.reflect.InvocationTargetException
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at java.lang.reflect.Method.invoke(Method.java:498)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at net.minecraftforge.gradle.GradleStartCommon.launch(GradleStartCommon.java:97)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1052]: 	at GradleStart.main(GradleStart.java:25)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: Caused by: net.minecraftforge.fml.relauncher.FMLSecurityManager$ExitTrappedException
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at net.minecraftforge.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:49)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at java.lang.SecurityManager.checkExit(SecurityManager.java:761)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at java.lang.Runtime.exit(Runtime.java:108)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at java.lang.System.exit(System.java:973)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at net.minecraft.launchwrapper.Launch.launch(Launch.java:138)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[15:29:12] [main/INFO] [STDERR]: [java.lang.ThreadGroup:uncaughtException:1061]: 	... 6 more

 

 

 

At first I though it might be a java error, so I tried all the java versions I have to see if that did anything, however nothing changed

For the record, the output of "archlinux-java status":

Available Java environments:
  java-10-openjdk
  java-11-openjdk
  java-8-jre/jre
  java-8-openjdk (default)

 

And the output of "java -version":

openjdk version "1.8.0_242"
OpenJDK Runtime Environment (build 1.8.0_242-b08)
OpenJDK 64-Bit Server VM (build 25.242-b08, mixed mode)

 

This is the java I use for everything, including running Minecraft normally

I thus have no idea what the issue is, any ideas.

 

If any more information is needed about my system or the programming, just ask

 

 

 

 

 

 

 

 

 

 

 

 

[Spirfire972]

Could you send your code please or a link to the tutorial you're following