Project -> Project Dependencies 仅用于描述额外的非链接相关的依赖项.为非托管代码使用指定链接依赖:

Project -> Project Dependencies is only for describing additional non-link related dependencies. To specify a link dependency for unmanaged code use:

Project -> Properties -> Common Properties -> Framework and References -> References -> Add New Reference... -> Projects

Project -> Properties -> Common Properties -> Framework and References -> References -> Add New Reference... -> Projects

和托管代码使用:

项目 -> 添加引用 -> 项目

Project -> Add Reference -> Projects

如果设置正确，Visual Studio 应该能够找到项目间引用.

If this is set up correctly Visual Studio should be able to find inter-project references.