在vs 2019版本16.8.2中 右键单击项目名称 点击“编辑项目文件”

抱歉，最有效的方法，而不是填充您的proj文件是。

right click the file. goto properties where Build Action option is set it to NONE. Do a build (yes you may get build error if you do even better) go back to properties of that file set Build Action option is set it back to Compile. rebuild. Congratulate your self for being smarter than everyone else and not ****ing you project. For me this exercise took under 10 seconds. Where as manually trying to input the compile... line into the csproj not only can render your project unusable but it is also impossible to maintain on large scale application. Better to keep source version control software to do the updates. If you need to cross merge branches then doing the above is amazing :).

有一种更简单的方法，因此您不必卸载项目。只需在Visual Studio中安装这个名为EditProj的工具: https://marketplace.visualstudio.com/items?itemName=EdMunoz.EditProj

然后右键单击编辑，你会有一个新的菜单项编辑项目文件:)

在vs 2019版本16.8.2中 右键单击项目名称 点击“编辑项目文件”

对于Visual studio版本:8.1.5，

右键单击项目文件夹。 点击“工具”，然后点击“编辑文件”。

您还可以通过双击项目文件来打开.csproj。所以不需要右键单击并选择编辑项目文件。只需双击，就完成了。