goldkilla88

Hi, I am trying to run the .jar file (not modified at all, just in case you need to know) and nothing happens after I double click it. The mouse cursor shows up for barely even half a second then disappears. I checked task manager and java also only appears for a brief moment before vanishing. I tried running the .jar through command prompt and I got this: "C:\Users\Justin\Desktop>java.exe -jar minecraftforge-universal-1.6.4-9.11.1.916.jar We appear to be missing one or more essential library files. You will need to add them to your server before FML and Forge will run successfully. java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch at java.net.URLClassLoader$1.run(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Unknown Source) at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:30) at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:17)" Can anyone give me some sort of solution? I'm sure Java is fine because I can run the 'minecraft.jar' download from the Minecraft.net website, and Minecraft itself works fine and flawless. Things online that use Java also work, if that matters. I also have the same problem with the Shaders Mod by karyonix .jar installer, although the message in CMD is different.