问题描述
在重构某些代码的过程中，我遇到了一些构建错误，例如:
In the process of refactoring some code, I encountered several build errors such as these:
项目文件包含无效的属性值.
The project file contains a property value that is not valid.
如何解决这些错误?
推荐答案
当您将文件复制并粘贴到一个项目中或另一个项目中时，Visual Studio有一个讨厌的习惯，就是不保持相同的 BuildAction >属性.它通常会将构建操作更改为看似随机的值，例如 ApplicationDefinition ，这会导致生成错误.
When you copy and paste files either within a project or to another project, Visual Studio has a nasty habit of not keeping the same BuildAction property. It often changes the build action to a seemingly random value, e.g. ApplicationDefinition, which causes that build error.
检查(在Visual Studio属性窗口中，在解决方案资源管理器中选择了文件)，检查您的每个.xaml文件是否具有 Page 的 BuildAction 属性以及您的代码文件具有编译的 BuildAction 属性.
Check (in the Visual Studio properties window with the file selected in the Solution Explorer) that each of your .xaml files have a BuildAction property of Page and your code files have a BuildAction property of Compile.
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