无法使用 Nuget 安装包

Cannot install packages using Nuget

我无法使用 nuget 在 vi​​sual stuio 中将任何包安装到我的 Unity UWP 项目输出(VS 解决方案在 C++ 中)。 我得到 "Could not install package 'xxxxx'. You are trying to install this package into a project that targets 'native,Version=v0.0', but the package does not contain any assembly references or content files that are compatible with that framework."

我安装了统一版 2019 和 Visual studio 2019。

所以句子 "but the package does not contain any assembly references or content files that are compatible with that framework" 说的都是...