I m having the same error, and this is the red text that pops up in the BepInEx window when the game loads. I cannot decipher it;

[Warning: HarmonyX] AccessTools.DeclaredMethod: Could not find method for type Fermenter and name UpdateVis and parameters
[Error : Unity Log] ArgumentException: Undefined target method for patch method static System.Collections.Generic.IEnumerable<HarmonyLib.CodeInstruction> ValheimPlus.GameClasses.Fermenter_UpdateVis_Transpiler::Transpiler(System.Collections.Generic.IEnumerable<HarmonyLib.CodeInstruction> instructions)
Stack trace:
HarmonyLib.PatchClassProcessor.PatchWithAttributes (System.Reflection.MethodBase& lastOriginal) (at <116dd996dda44480a48a0fc9ee2308ed>:0)
HarmonyLib.PatchClassProcessor.Patch () (at <116dd996dda44480a48a0fc9ee2308ed>:0)
Rethrow as HarmonyException: Patching exception in method null
HarmonyLib.PatchClassProcessor.ReportException (System.Exception exception, System.Reflection.MethodBase original) (at <116dd996dda44480a48a0fc9ee2308ed>:0)
HarmonyLib.PatchClassProcessor.Patch () (at <116dd996dda44480a48a0fc9ee2308ed>:0)
HarmonyLib.Harmony.<PatchAll>b__11_0 (System.Type type) (at <116dd996dda44480a48a0fc9ee2308ed>:0)
HarmonyLib.CollectionExtensions.Do[T] (System.Collections.Generic.IEnumerable1[T] sequence, System.Action1[T] action) (at <116dd996dda44480a48a0fc9ee2308ed>:0)
HarmonyLib.Harmony.PatchAll (System.Reflection.Assembly assembly) (at <116dd996dda44480a48a0fc9ee2308ed>:0)
HarmonyLib.Harmony.PatchAll () (at <116dd996dda44480a48a0fc9ee2308ed>:0)
ValheimPlus.ValheimPlusPlugin.Awake () (at <20d16ad03d1343a9a378ce50c0853f08>:0)
UnityEngine.GameObject:AddComponent(Type)
BepInEx.Bootstrap.Chainloader:Start()





I have already attempted the fixes listed in the link provided by Ares4X, and the server owner has updated the server as well. A white box still takes up most of the start screen until I press start, and I still get the incompatible version error when attempting to connect to the server. Can someone decipher the above error into plain text and explain what I need to do to fix it?

Originally posted by vandsp:

updated

hi i just had steam do an update and now i cannot open the game, it say not compatible

any suggests to fix

Steam autoloaded a 43+ MB update to the game for me.

This only happens to me when our dedicated multiplayer server hasn't updated but i have. If its happening on single player server, i don't have any idea.

https://www.drivereasy.com/knowledge/fix-valheim-incompatible-version-error/
You're welcome.

hi i just had steam do an update and now i cannot open the game, it say not compatible

any suggests to fix