I keep getting this message whenever I load a city. I installed the .dll and .png into the correct folders. It does not show up in the Options panel, either.

The Mod E:\Steam\steamapps\workshop\content\255710\920832749 [TerrainTextureReplacer.dll] has caused an error [ModException]

Details:
System.TypeLoadException: Could not load type 'ColossalFramework.Steamworks.PublishedFileId' from assembly 'ColossalManaged, Version=0.3.0.0, Culture=neutral, PublicKeyToken=null'.
at TerrainTextureReplacer4.TerrainTextureLoader4.OnLevelLoaded (LoadMode mode) [0x00000] in <filename unknown>:0
at LoadingWrapper.OnLevelLoaded (UpdateMode mode) [0x00000] in <filename unknown>:0

This is a copy of original "Terrain Texture Replacer" (by hyperdrive_engage)
http://sp.zhabite.com/sharedfiles/filedetails/?id=416966387
Original MOD was deleted by the author after it was no longer updated.

Another Modder "Holy Crab" is creating the same MOD.
TTR - Terrain Texture Replacer
http://sp.zhabite.com/sharedfiles/filedetails/?id=811664974