Debugging postgres on Windows - could not open directory "/lib"

I'm trying to build and debug postgresql on Windows.  After building successfully, a file named pgsql.sln was generated.  I opened it in Visual Studio 2022, and set 'postgres' as the single startup project.  But when I started debugging it, the error came out:

Here is my 'pgsql' Property setting in Visual Studio:

I would greatly appreciate it if someone could give me some suggestions on how to fix this issue.

Best regards,

Cathy