The 3rd upgrade is broken

[BoobaPog]

The error message in the console tells a lot. Looks like you probably misspelled a line of code at line 173

Error message:
System.MissingMethodException: Method not found: 'Void Il2CppAssets.Scripts.Models.Towers.Projectiles.Behaviors.AddBonusDamagePerHitToBloonModel..ctor(System.String, System.String, Single, Single, Int32, Boolean, Boolean, Boolean)'.
at AlchemistFourthPath.AlchemistFourthPath.BloonWeakness.ApplyUpgrade(TowerModel towerModel)
at PathsPlusPlus.PathPlusPlus.Apply(TowerModel tower, Int32 tier) in /home/runner/work/paths-plus-plus/paths-plus-plus/PathsPlusPlus/PathPlusPlus.cs:line 173
at PathsPlusPlus.Patches.RateMutator_Mutate.Prefix(RateSupportMutator __instance, Model model, Boolean& __result) in /home/runner/work/paths-plus-plus/paths-plus-plus/PathsPlusPlus/Patches/GamePatches.cs:line 29
at DMD<Il2CppAssets.Scripts.Models.Towers.Behaviors.RateSupportModel+RateSupportMutator::Mutate>(RateSupportMutator this, Model baseModel, Model model)
at (il2cpp -> managed) Mutate(IntPtr , IntPtr , IntPtr , Il2CppMethodInfo* )

[BoobaPog]

I know nothing about BTD6 modding. But I have been programing for a while now. So I have some clues why this mod doesn't work.

In your code, the BloonWeakness class, inside the ApplyUpgrade method, there's a call to "new AddBonusDamagePerHitToBloonModel". The parameters passed to this constructor must match the expected signature. You must ensure that your ApplyUpgrade method's constructor call matches the expected parameters.

Here's the relevant line in your code:
attackModel.weapons[0].projectile.AddBehavior(new AddBonusDamagePerHitToBloonModel("ouchyNerd", "_ouchyNerd", 10f, 6f, 7, true, true, false))

To resolve this issue, you could try:
Verify the correct parameters for "AddBonusDamagePerHitToBloonModel" constructor. This might involve checking the documentation or source code of the API.
Also, update the parameters in the "new AddBonusDamagePerHitToBloonModel" call to match the correct signature.