Is there something missing so that I cannot include the package in a simple console application that was cloned from this GitHub repository:

Why could the components be missing still? Is there an installation process or a procedure missing?

(IDE: Rad Studio 10.3 Rio).

CodePudding user response：

So the solution was to go "Tools -> Options -> Language -> Delphi -> Library path" and manually include the library paths that were mising, e.g. "..Downloads\Repositories\fibplus" - the main folder containing file "FIBPlus.inc" were missing, and the IDE showed the error that the file was missing.

Just manually search for the files that Rad Studio was missing, insert them into library path and that's it.