I had a project c++ developed and working on a arch 32 with a complex menu
so the file project.rc must be seen on execution
Now I move to a arch 64 and I move also the project.
Recompilation and installation was ok.

When I start as normal program menus are ok,
but when I try to debug inside kdevelop menus are missing.

The problem is very old.

In the past I solved the problem pointing directly to the file
createGUI( "$HOME/projects/test/src/testui.rc" );
but clearly this is not the solution.

I know that everything is related to KDEDIRS.

Now, after installation KDEDIRS not exist. 'set |grep KDEDIRS' --> null output
Why ? Depends on distribution ?

What is the right time to set up ?

Why this relation is missing if I create a new program from template
ex: new--> kde --> graphical

I never understood if this a bug or .......

Can you please clarify what you're trying to accomplish here? Is this a custom KXMLGUI application?