Set Up for Unity?

[zbreen]

Hello. As part of a project, I'm trying to use this to, hopefully, be able to better integrate my Lua and C# code. However, when I download and attempt to put this file in my Unity Project's plugins, I get the following error:
Mono.CompilerServices.SymbolWriter.MonoSymbolFileException: Symbol file C:/Users/explo/OneDrive/Desktop/CompiledPracticum/Iteration3.3/GameDevelopmentFall2018/Assets/Plugins/Plugins/KopiLua.dll.mdb' does not match assembly at Mono.CompilerServices.SymbolWriter.MonoSymbolFile.ReadSymbolFile (System.String mdbFilename, System.Guid assemblyGuid) [0x00029] in <42af2190f59f4f56803a83e1b03d02ee>:0 at Mono.Cecil.Mdb.MdbReaderProvider.GetSymbolReader (Mono.Cecil.ModuleDefinition module, System.String fileName) [0x00019] in <42af2190f59f4f56803a83e1b03d02ee>:0 at Mono.Cecil.ModuleReader.ReadSymbols (Mono.Cecil.ModuleDefinition module, Mono.Cecil.ReaderParameters parameters) [0x00032] in <a3989f8c34e6476eaca56644d5639ee8>:0 at Mono.Cecil.ModuleReader.CreateModule (Mono.Cecil.PE.Image image, Mono.Cecil.ReaderParameters parameters) [0x00081] in <a3989f8c34e6476eaca56644d5639ee8>:0 at Mono.Cecil.ModuleDefinition.ReadModule (Mono.Disposable1[T] stream, System.String fileName, Mono.Cecil.ReaderParameters parameters) [0x0000d] in :0
at Mono.Cecil.ModuleDefinition.ReadModule (System.String fileName, Mono.Cecil.ReaderParameters parameters) [0x0006c] in :0
at Mono.Cecil.AssemblyDefinition.ReadAssembly (System.String fileName, Mono.Cecil.ReaderParameters parameters) [0x00000] in :0
at AssemblyUpdater.Core.AssemblyUpdaterContext.ReadAssembly (System.String assemblyPath, APIUpdater.Framework.Log.IAPIUpdaterListener listener, System.IO.FileAccess mode, System.String[] searchPaths) [0x00071] in <9b15f78862324bb78e7634166b702b09>:0
at AssemblyUpdater.Core.AssemblyUpdaterContext.From (System.String assemblyPath, APIUpdater.Framework.Configuration.IConfigurationProvider configuration, System.String[] assemblySearchPaths, AssemblyUpdater.Core.UpdaterMode mode, APIUpdater.Framework.Log.IAPIUpdaterListener listener) [0x0002b] in <9b15f78862324bb78e7634166b702b09>:0
at AssemblyUpdater.Core.AssemblyUpdaterContext.From (System.String assemblyPath, System.String[] assemblySearchPaths, AssemblyUpdater.Core.UpdaterMode mode, APIUpdater.Framework.Log.IAPIUpdaterListener listener) [0x00001] in <9b15f78862324bb78e7634166b702b09>:0
at AssemblyUpdater.Application.Program.CheckForObsoleteAPIUsage (AssemblyUpdater.Application.CommandLineSpec config) [0x00013] in <9b15f78862324bb78e7634166b702b09>:0
at AssemblyUpdater.Application.Program.Main (System.String[] args) [0x00057] in <9b15f78862324bb78e7634166b702b09>:0
UnityEditor.Scripting.APIUpdaterHelper:DoesAssemblyRequireUpgrade(String)

How am I supposed to integrate this with my current project? Is this even applicable to Unity?