These errors happen when I launch minecraft, First error happens when I launch the login menu ( It still boots up ). Second when I actually launch the game.

Landswimmer@linux-99vz:~/Documents/Minecraft/Vanilla> java -jar minecraft.jar 

asdf

java.io.FileNotFoundException: /home/Landswimmer/.minecraft/lastlogin (No such file or directory)

        at java.io.FileInputStream.open(Native Method)

        at java.io.FileInputStream.<init>(FileInputStream.java:138)

        at net.minecraft.LoginForm.readUsername(LoginForm.java:110)

        at net.minecraft.LoginForm.<init>(LoginForm.java:55)

        at net.minecraft.LauncherFrame.<init>(LauncherFrame.java:23)

        at net.minecraft.LauncherFrame.main(LauncherFrame.java:167)

        at net.minecraft.MinecraftLauncher.main(MinecraftLauncher.java:13)



Exception in thread "Thread-4" java.lang.UnsatisfiedLinkError: /home/Landswimmer/.minecraft/bin/natives/liblwjgl.so: /home/Landswimmer/.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.G(SourceFile:1985)

        at awe.<init>(SourceFile:20)

        at net.minecraft.client.Minecraft.<init>(SourceFile:76)

        at avv.<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)