minecraft on windows rt: problems

hi xda!, now i'm in summer holidays and it's time to code!
i recently tried to start minecraft on windows rt with ikvm

but when it finish i get this error

Code:

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Unsupported option ignored: -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
Unsupported option ignored: -Xmx512M
Unsupported option ignored: -XX:+UseConcMarkSweepGC
Unsupported option ignored: -XX:+CMSIncrementalMode
Unsupported option ignored: -XX:-UseAdaptiveSizePolicy
Unsupported option ignored: -Xmn128M
Exception in thread "main" java.lang.ExceptionInInitializerError
        at org.lwjgl.Sys.getTime(Sys.java)
        at bao.K(SourceFile:2173)
        at net.minecraft.client.main.Main.main(SourceFile:72)
Caused by: cli.System.DllNotFoundException: Impossibile caricare la DLL 'ikvm-native': Impossibile trovare il modulo specificato. (Eccezione da HRESULT: 0x8007007E).
        at cli.IKVM.Runtime.NativeLibrary$Classic.ikvm_LoadLibrary(Unknown Source)
        at cli.IKVM.Runtime.NativeLibrary$Classic._LoadLibrary(Unknown Source)
        at cli.IKVM.Runtime.NativeLibrary.LoadLibrary(Unknown Source)
        at cli.IKVM.Runtime.JniHelper.LoadLibrary(Unknown Source)
        at Java_java_lang_ClassLoader_00024NativeLibrary.doLoad(Unknown Source)
        at Java_java_lang_ClassLoader_00024NativeLibrary.load(Unknown Source)
        at java.lang.ClassLoader$NativeLibrary.load(Native Method)
        at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1947)
        at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1865)
        at java.lang.Runtime.loadLibrary0(Runtime.java:871)
        at java.lang.System.loadLibrary(System.java:1171)
        at org.lwjgl.Sys$1.run(Sys.java:75)
        at java.security.AccessController.doPrivileged(AccessController.java:308)
        at java.security.AccessController.doPrivileged(AccessController.java:356)
        at org.lwjgl.Sys.doLoadLibrary(Sys.java:78)
        at org.lwjgl.Sys.loadLibrary(Sys.java:106)
        at org.lwjgl.Sys.<clinit>(Sys.java:113)
        ... 3 more

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What should i do?

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