[StardewValley 1.5.6 / SMAPI 3.17.2]Mod crashed on Entry

[MokuJinJin]

[SMAPI] SMAPI 3.17.2 with Stardew Valley 1.5.6 (build 22018) on Microsoft Windows 10
[SMAPI] Waiting for game to launch...
[SMAPI] Loading mod metadata...
[SMAPI] Loading mods...
[SMAPI] Loaded 1 mods:
[SMAPI]    Bookcase 0.8.6 by Darkhax | Additional utilities for making stardew mods and ensuring cross compatability.

[SMAPI] Found 1 mod with warnings:
[SMAPI]    Patched game code
[SMAPI]    --------------------------------------------------
[SMAPI]       These mods directly change the game code. They're more likely to cause errors or bugs in-game; if
[SMAPI]       your game has issues, try removing these first. Otherwise you can ignore this warning.

[SMAPI]       - Bookcase

[SMAPI] Launching mods...
[Bookcase] This mod has wrapped Game1.hooks!
[Bookcase] Mod crashed on entry and might not work correctly. Technical details:
MissingMethodException: Method not found: 'System.Collections.Generic.Dictionary`2<System.String,System.Version> HarmonyLib.Harmony.VersionInfo(System.Version ByRef)'.
   at Bookcase.Patches.PatchManager..ctor()
   at Bookcase.BookcaseMod.Entry(IModHelper helper) in O:\StardewValley\Bookcase\Bookcase\BookcaseMod.cs:line 24
   at StardewModdingAPI.Framework.SCore.LoadMods(IModMetadata[] mods, JsonHelper jsonHelper, ContentCoordinator contentCore, ModDatabase modDatabase) in SMAPI\Framework\SCore.cs:line 1773

this is causing the game to freeze when loading a game.