（.NET）在构建插件时，如何处理相同类型的两个版本？

We're building a plugin for a commercial application that uses a recent version of a commercial UI framework. Our plugin references a different (older) version of the same framework as well as the API dlls for the app into which it plugs. We're now getting a duplicate-type conflict (CS0433) at runtime when loading certain parts of the commercial application. We're building a plugin for a commercial applic