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crazywillbear

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  1. i cant open my multimc instance with forge installed. when i uninstall forge, it launches with no problem. It said this: [17:14:31] [main/ERROR]: Unable to launch java.lang.RuntimeException: FML was unable to install the security manager. The game will not start at net.minecraftforge.fml.common.launcher.FMLTweaker.<init>(FMLTweaker.java:58) ~[forge-1.12.2-14.23.5.2854-universal.jar:?] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_261] at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_261] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_261] at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_261] at java.lang.Class.newInstance(Unknown Source) ~[?:1.8.0_261] at net.minecraft.launchwrapper.Launch.launch(Launch.java:98) [launchwrapper-1.12.jar:?] at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_261] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_261] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_261] at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_261] at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:196) [NewLaunch.jar:?] at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:231) [NewLaunch.jar:?] at org.multimc.EntryPoint.listen(EntryPoint.java:143) [NewLaunch.jar:?] at org.multimc.EntryPoint.main(EntryPoint.java:34) [NewLaunch.jar:?] Caused by: java.lang.SecurityException Process exited with code 1
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