无法解决对enyi . cache的依赖关系

I have a problem with resolving dependency to Enyim.Caching.dll while using Couchbase client. I have downloaded the dlls via NuGet and referenced them in the project. The solution compiles fine with the downloaded assembly Enyim.Caching, Version=2.12.0.0, Culture=neutral, PublicKeyToken=I have a problem with resolving dependency to E