Whenever I try to run my game it trows a System.MissingMethodException

Details?

I recently installed the cheats menu mod and after placing everything in its respected folder I click in SMAPI.exe and when the command prompt comes up it says a bunch of things then says "Game failed to start: System.MissingMethodException: Method not found: 'Int32 StardewValley.Game1.getMouseX()'.
at StardewModdingAPI.Inheritance.SGame.Update(GameTime gameTime)
at Microsoft.Xna.Framework.Game.RunGame(Boolean useBlockingRun)
at StardewModdingAPI.Program.RunGame()"

Does this occur with no mods installed? Which version of SMAPI are you using?

Yes it happens without any mods installed and I'm using 0.39.4

Have you tried 0.39.5?

Yes I have

I'm 99% certain that a mod is causing that. Are you certain your mods folder is empty?
Note that there are 2 'Mods' folders.

Yes the mod folder is completely empty

Try deleting the entire mods folder itself. I cannot reproduce this, and I've yet to have anyone that's tested my builds run into this.

I am so sorry I figured out what was causing the problem it was purely due to my own negligence that this happened. I forgot I copied my steam folders and I was running everything from the wrong folder. Everything is working perfectly now I am sorry for causing you trouble.

It's all good. Have a nice day/evening.