Hello
I have installed all the mods 3 modpack and added another mods to it including trinity
And for some reason the game does crash when I do start it I have searched on the internet about the problem but I could not find any solution
By the way I do have the version NuclearCraft-2.18zzz-1.12.2.jar and Trinity-1.4.b.jar
Any ways this is the text about the crash:

java.lang.NoClassDefFoundError: trinity/world/BiomeContaminatedOcean
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
at java.lang.Class.privateGetPublicFields(Class.java:2614)
at java.lang.Class.getFields(Class.java:1557)
at net.minecraftforge.registries.ObjectHolderRegistry.scanClassForFields(ObjectHolderRegistry.java:145)
at net.minecraftforge.registries.ObjectHolderRegistry.scanTarget(ObjectHolderRegistry.java:115)
at net.minecraftforge.registries.ObjectHolderRegistry.findObjectHolders(ObjectHolderRegistry.java:68)
at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:626)
at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:252)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:467)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:378)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.ClassNotFoundException: trinity.world.BiomeContaminatedOcean
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 18 more
Caused by: java.lang.NoClassDefFoundError: nc/worldgen/biome/NCBiome
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
... 20 more
Caused by: java.lang.ClassNotFoundException: nc.worldgen.biome.NCBiome
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:101)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 24 more

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: Client thread
Stacktrace:
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
at java.lang.Class.privateGetPublicFields(Class.java:2614)
at java.lang.Class.getFields(Class.java:1557)
at net.minecraftforge.registries.ObjectHolderRegistry.scanClassForFields(ObjectHolderRegistry.java:145)
at net.minecraftforge.registries.ObjectHolderRegistry.scanTarget(ObjectHolderRegistry.java:115)
at net.minecraftforge.registries.ObjectHolderRegistry.findObjectHolders(ObjectHolderRegistry.java:68)
at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:626)
at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:252)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:467)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:378)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

Trinity 1.4b is for use with NuclearCraft: Overhauled. By using NuclearCraft 2.18zz, you are using the pre-overhaul version of Nuclearcraft. If you want to use the pre-overhaul, you should use Trinity 0.4.

Trinity 1.4b is for use with NuclearCraft: Overhauled. By using NuclearCraft 2.18zz, you are using the pre-overhaul version of Nuclearcraft. If you want to use the pre-overhaul, you should use Trinity 0.4.

Okay thanks I will try