Hi, I'm new to creating Visual Studio project.
I've tried below tutorial. I'm now creating DLL sample. But I got the error I mentioned at title when I try the tutorial.
https://docs.microsoft.com/en-us/cpp/build/walkthrough-creating-and-using-a-dynamic-link-library-cpp?view=msvc-160
Firstly, I created a MathLibrary project that is from the tutorial, then I created a client project too. But I got the error on the client project even if I added a include directory reference in a property setting.


Why I got the error?



