[Boost-users] simple Jamroot build fails

Dear all, I have a simple Jamroot file for which I don't know why it does not work. Bjam is always complaining: error: Unable to find file or target named error: '/boost/filesystem//fs' error: referred from project at error: '.' However, since I use "use-project boost : c:/boost_1_50_0 ; ", I would assume that it would find it easily. Here is the Jamroot: using msvc ; use-project boost : c:/boost_1_50_0 ; project spectraImport : requirements <library>/boost/filesystem//fs : build-dir ../boost-build ; exe spectraImport : [ glob *.cpp ] ; install ../boost-build : spectraImport ; I appriciate any help. Thank you, Ronny