Duplicate links mscorlib to Roslyn when compiling

The path to the .dll files was taken from here:

C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\

 List<string> DLL = new List<string>(); //тут уже лежит список путей к .dll using (var provider = new CSharpCodeProvider()) { // DLL.ToArray() добавляю ссылки var Params = new CompilerParameters() { //parametrs build }; provider.CompileAssemblyFromSource(Params, SourceCode) // compile } 

But at compile time I get an error:

error CS1703: Multiple assemblies with the equivalent identity have been imported: 'C: \ Windows \ Microsoft .NET \ Framework \ v4.0.30319 \ mscorlib.dll' and 'C: \ Program Files (x86) \ Reference \ Assemblies \ Microsoft \ Framework .NETFramework \ v3.5 \ Profile \ Client \ mscorlib.dll '.

Remove one of the duplicate references.

How to fix?

[ Additional Information ]

The project itself is compiled under .Net4.5

(especially for Roslyn , he does not install his library for other versions of NetFramework )

If you take this code:

 List<string> DLL = new List<string>() // просто файлы { "mscorlib.dll", "System.Data.dll" } using (var provider = new CSharpCodeProvider()) { var Params = new CompilerParameters(DLL.ToArray()) { //parametrs build }; provider.CompileAssemblyFromSource(Params, SourceCode) // compile } 

It all works, but it adds links from List<string> from the project itself (under which it was compiled) PS: Not from folders!

And I need to add from the folder I need, but if I do this (see 1st post), I get an error saying that you cannot add .dll libraries from different folders. How do I get the libraries I need and add them to the assembly I do not know how.

[ What did you do? ]

I tried to remove from the file that compiles links ( usings ).

I tried to remove the packages.config file

But all to no avail.