需要在IDE中设置include目录.右键单击您的项目并选择属性.导航到 C/C++ -> General -> Additional Include Directories 并将路径添加到包含文件夹(包含 Helpers 文件夹和 helpers.h 文件的文件夹).像这样:

You need to set the include directory in the IDE. Right click your project and select Properties. Navigate to C/C++ -> General -> Additional Include Directories and add the path to your include folder (the folder that contains the Helpers folder with your helpers.h file in it). Something like this:

$(SolutionDir)your_project\include