So, i use multimc and i tried to put forge on my 1.7.10 version, without any mod, only forge, and when i start up i receive this log, anyone can tell me what is going on ?
MultiMC version: 0.6. Java is version 1.8.0_211, using 64-bit architecture. 2019-07-28 17:14:23,911 ERROR Error processing element Queue: CLASS_NOT_FOUND
2019-07-28 17:14:24,055 ERROR Unable to locate appender ServerGuiConsole for logger com.mojang
2019-07-28 17:14:24,056 ERROR Unable to locate appender ServerGuiConsole for logger
2019-07-28 17:14:24,056 ERROR Unable to locate appender ServerGuiConsole for logger net.minecraft
[17:14:24] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[17:14:24] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[17:14:24] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
Exception in thread "main" java.lang.NoClassDefFoundError: com/mojang/authlib/exceptions/AuthenticationException
at cpw.mods.fml.common.launcher.FMLTweaker.acceptOptions(FMLTweaker.java:104)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:114)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.ClassNotFoundException: com.mojang.authlib.exceptions.AuthenticationException
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)
... 3 more
Process exited with code 1.