I tried to startup a mod pack (Ultimate hypixel package 1.8.9) and it was crashing with minecraft error code 1 mind you it was working fine up until today. So I tried making a new profile in curseforge with no mods but same minecraft version and same forge version and it also crashed on startup.

 

 

 

Forge profile log: 

[10:06:00] [main/INFO]:Loading tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker

[10:06:00] [main/INFO]:Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLTweaker

[10:06:00] [main/INFO]:Calling tweak class net.minecraftforge.fml.common.launcher.FMLTweaker

[10:06:00] [main/INFO]:Forge Mod Loader version 11.15.1.2318 for Minecraft 1.8.9 loading

[10:06:00] [main/INFO]:Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_51, running on Windows 10:amd64:10.0, installed at C:\Users\JoeKa\curseforge\minecraft\Install\runtime\jre-legacy\windows-x64\jre-legacy

[10:06:00] [main/INFO]:Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker

[10:06:00] [main/INFO]:Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker

[10:06:00] [main/INFO]:Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker

[10:06:00] [main/INFO]:Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker

[10:06:00] [main/INFO]:Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper

[10:06:01] [main/INFO]:Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557

[10:06:01] [main/INFO]:Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc

[10:06:01] [main/INFO]:Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper

[10:06:01] [main/INFO]:Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker

[10:06:01] [main/INFO]:Loading tweak class name net.minecraftforge.fml.common.launcher.TerminalTweaker

[10:06:01] [main/INFO]:Calling tweak class net.minecraftforge.fml.common.launcher.TerminalTweaker

[10:06:01] [main/INFO]:Launching wrapped minecraft {net.minecraft.client.main.Main}

[10:06:02] [main/ERROR]:Unable to launch

java.lang.reflect.InvocationTargetException

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51]

at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51]

at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) [launchwrapper-1.12.jar:?]

at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.12.jar:?]

Caused by: java.lang.UnsatisfiedLinkError: no lwjgl64 in java.library.path

at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1865) ~[?:1.8.0_51]

at java.lang.Runtime.loadLibrary0(Runtime.java:870) ~[?:1.8.0_51]

at java.lang.System.loadLibrary(System.java:1122) ~[?:1.8.0_51]

at org.lwjgl.Sys$1.run(Sys.java:72) ~[lwjgl-2.9.4-nightly-20150209.jar:?]

at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_51]

at org.lwjgl.Sys.doLoadLibrary(Sys.java:66) ~[lwjgl-2.9.4-nightly-20150209.jar:?]

at org.lwjgl.Sys.loadLibrary(Sys.java:87) ~[lwjgl-2.9.4-nightly-20150209.jar:?]

at org.lwjgl.Sys.<clinit>(Sys.java:117) ~[lwjgl-2.9.4-nightly-20150209.jar:?]

at net.minecraft.client.Minecraft.func_71386_F(Minecraft.java:2756) ~[ave.class:?]

at net.minecraft.client.main.Main.main(SourceFile:41) ~[Main.class:?]

... 6 more

[10:06:02] [main/INFO]:[java.lang.ThreadGroup:uncaughtException:1052]: net.minecraftforge.fml.relauncher.FMLSecurityManager$ExitTrappedException

[10:06:02] [main/INFO]:[java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraftforge.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:30)

[10:06:02] [main/INFO]:[java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.SecurityManager.checkExit(SecurityManager.java:761)

[10:06:02] [main/INFO]:[java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.Runtime.exit(Runtime.java:107)

[10:06:02] [main/INFO]:[java.lang.ThreadGroup:uncaughtException:1052]: at java.lang.System.exit(System.java:971)

[10:06:02] [main/INFO]:[java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:138)

[10:06:02] [main/INFO]:[java.lang.ThreadGroup:uncaughtException:1052]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

 

Same issue with other modpacks in newer versions?

I have not tried that yet I'll do that right now and tell you how it goes

2 minutes ago, TileEntity said:

Same issue with other modpacks in newer versions?

yep I just tried to start the newest version of RL craft and it crashed error code 1. I  tried  All The mods 9 the latest version and it worked fine and it was forge version 47.4.0.

11 minutes ago, TileEntity said:

Same issue with other modpacks in newer versions?

The weird part also is that a little while ago today i made a vanilla profile for mc 1.8.9 for testing without and forge mod loader attached and it still crashed with error code 1 so I don't know if it's the version jar or what. 

Also make a test with another Launcher like AT Launcher or MultiMC

6 minutes ago, TileEntity said:

Also make a test with another Launcher like AT Launcher or MultiMC

I completely deleted curse forge and the Minecraft profiles off of my pc hard drive and reinstalled curse forge and now it works again so i must of have a corrupt file somewhere. Thanks for the help though.