[Boost-build] warn: Unable to construct ...

Subject: [Boost-build] warn: Unable to construct ...
From: Börje Granberg (borje.granberg_at_[hidden])
Date: 2010-04-01 07:37:49

Can anyone help to debug why I get this error?

the project structure is something like the following.
   |-Jamroot
   |-lib1/
   |----Jamfile  ### declared thelib
   |----proto.jam
   |-lib2/
   |----Jamfile ### uses thelib

../lib1/thelib imports the proto.jam I proudly borrowed from this list
(http://lists.boost.org/boost-build/2009/01/21219.php).
The error message occurs when I try to build lib2, which uses thelib
but not when I stand in the lib1 folder and run bjam.
Any ideas how to proceed?

//Börje