So I just made a modpack and i keep getting an error

odbn

New Member
Nov 8, 2021
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0
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[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:31]: java.lang.reflect.InvocationTargetException
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:31]: at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:31]: at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:31]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:31]: at java.lang.reflect.Method.invoke(Unknown Source)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:31]: at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:62)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:main:31]: at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:31)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:67]: Caused by: java.lang.NoClassDefFoundError: net/minecraft/util/IProgressUpdate
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:67]: at java.lang.Class.getDeclaredMethods0(Native Method)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:67]: at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:67]: at java.lang.Class.privateGetMethodRecursive(Unknown Source)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:67]: at java.lang.Class.getMethod0(Unknown Source)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:67]: at java.lang.Class.getMethod(Unknown Source)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:67]: at net.minecraft.launchwrapper.Launch.launch(Launch.java:132)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:67]: at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
[16:04:40] [main/INFO] [STDERR]: [net.minecraftforge.fml.relauncher.ServerLaunchWrapper:run:67]: ... 6 more
[16:04:40] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: Caused by: java.lang.ClassNotFoundException: net.minecraft.util.IProgressUpdate
[16:04:40] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
[16:04:40] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)
[16:04:40] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.loadClass(Unknown Source)
[16:04:40] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: ... 13 more
[16:04:40] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: Caused by: java.lang.ClassFormatError: Illegal field modifiers in class net/minecraft/util/IProgressUpdate: 0x1A
[16:04:40] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.defineClass1(Native Method)
[16:04:40] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.lang.ClassLoader.defineClass(Unknown Source)
[16:04:40] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at java.security.SecureClassLoader.defineClass(Unknown Source)
[16:04:40] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
[16:04:40] [main/INFO] [STDERR]: [java.lang.Throwable:printStackTrace:-1]: ... 15 more