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Thread: Minecraft Crashes on startup!

  1. #1
    Join Date
    Aug 2012
    Beans
    49

    Exclamation Minecraft Crashes on startup!

    I've been playing Minecraft up till now with no problems but just today when I tried to log into Minecraft I just got a black window. So I tried again with Magic Launcher and I got this crash report:

    Code:
    *** MagicMinecraftLauncher 1.0.0 ***
    Disable inactive mods
    java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        at magic.launcher.Launcher.main(Unknown Source)
    Caused by: java.lang.UnsatisfiedLinkError: /home/josh/.minecraft/bin/natives/liblwjgl.so: /home/josh/.minecraft/bin/natives/liblwjgl.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)
        at java.lang.ClassLoader$NativeLibrary.load(Native Method)
        at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1939)
        at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1864)
        at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1854)
        at java.lang.Runtime.loadLibrary0(Runtime.java:845)
        at java.lang.System.loadLibrary(System.java:1084)
        at org.lwjgl.Sys$1.run(Sys.java:72)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.lwjgl.Sys.doLoadLibrary(Sys.java:65)
        at org.lwjgl.Sys.loadLibrary(Sys.java:81)
        at org.lwjgl.Sys.<clinit>(Sys.java:98)
        at net.minecraft.client.Minecraft.F(SourceFile:1976)
        at net.minecraft.client.Minecraft.main(SourceFile:1564)
        ... 5 more
    I also tried launching via terminal:

    Code:
    ~$ java -jar /home/josh/.minecraft/minecraft.jar
    asdf
    Exception in thread "Thread-3" java.lang.UnsatisfiedLinkError: /home/josh/.minecraft/bin/natives/liblwjgl.so: /home/josh/.minecraft/bin/natives/liblwjgl.so: wrong ELF class: ELFCLASS32 (Possible cause: architecture word width mismatch)
    	at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    	at java.lang.ClassLoader.loadLibrary1(ClassLoader.java:1939)
    	at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1864)
    	at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1825)
    	at java.lang.Runtime.load0(Runtime.java:792)
    	at java.lang.System.load(System.java:1059)
    	at org.lwjgl.Sys$1.run(Sys.java:69)
    	at java.security.AccessController.doPrivileged(Native Method)
    	at org.lwjgl.Sys.doLoadLibrary(Sys.java:65)
    	at org.lwjgl.Sys.loadLibrary(Sys.java:81)
    	at org.lwjgl.Sys.<clinit>(Sys.java:98)
    	at net.minecraft.client.Minecraft.F(SourceFile:1976)
    	at asz.<init>(SourceFile:20)
    	at net.minecraft.client.Minecraft.<init>(SourceFile:75)
    	at asq.<init>(SourceFile:38)
    	at net.minecraft.client.MinecraftApplet.init(SourceFile:38)
    	at net.minecraft.Launcher.replace(Launcher.java:136)
    	at net.minecraft.Launcher$1.run(Launcher.java:79)
    Since both my Minecraft Server and Magic Launcher work fine it seems like its something wrong with Minecraft but i tried the "force update" option in the log in menu to no avail.

    PLEASE HELP I'M ADDICTED TO THIS GAME!!

  2. #2
    Join Date
    Oct 2009
    Location
    Elgin, IL USA
    Beans
    2,533
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Minecraft Crashes on startup!

    Did you change or update your lwjgl version lately and maybe not get all the files switched over? There should be files in that directory for 32 and 64-bit and it sounds you are running 64-bit Linux, but only have those 32-bit files.

    Code:
    efflandt@XPS8100-1204:~$ ls .minecraft/bin/natives
    libjinput-linux64.so  liblwjgl64.so  libopenal64.so
    libjinput-linux.so    liblwjgl.so    libopenal.so
    i5 650 3.2 GHz, 8 GB, nvidia GTX 550 Ti 32" 1080p | i7-4700, 8 GB, Intel HD 4600/nvidia GTX 765M 15.6" 1080p | etc.

  3. #3
    Join Date
    Jan 2013
    Beans
    69

    Re: Minecraft Crashes on startup!

    Does Minecraft use flash to play on the internet?

    If so I got this solution over in this thread here if you want to take a look. http://ubuntuforums.org/showthread.php?t=2108573

    There are some other links that go outside of that thread in the forums here. They show you how to get flash working for Java if you want.

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