Delphi project Relative Path Problems

You have written a program, how to copy the source code to different directories on other machines, and whether the program cannot be compiled, it is likely that the path is wrong, it is much easier to use relative paths in Project Settings, and project management is easier.
On the Project-> Option-> Directories \ Conditionals page, you can specify a directory
(1) do not use absolute paths. In this way, no matter whether the program is moved or released, there will be no need to modify the path again.
(2) The Directory is based on the current project file (*. dpk (Component package), *. dpr (EXE project), and so on)
(3) "." indicates the baseline directory, such as. \ Source. It indicates the subdirectory Source under the baseline directory.
(4) ".." indicates the parent directory of the baseline directory, such as .. \ Debug. It indicates the sub-directory Debug under the parent directory of the baseline directory, that is, the brother directory of the baseline directory.
(5) "... \ 5 parent directory of the parent directory, and so on...