what am I doing wrong in creating packages?

I have copied all my .pas files, all my .dfm files all my .dcu files
into a directory called '/project'.

I am trying to create a package 'package1.dpk which contains only
the Main.pas file (it is the main form of my project)

I want to output the result to a new directory called '/result'

I modify the directories appropriately (well...I think so)
and I Compile.

I get various Hints/Warnings but I get also the following error:

[Error] Never-build package 'Package1' requires always-build package

do you have any idea what am I doing wrong?

PS: The same error I get always even if I experiment with different .pas