Hi, I'm trying to use Boost 1.44 with QT Creator for this I have try this : 1 - download boost 1.44 from the Boost web site, and unzip it 2 - download the bjam.exe and copy it in the root of boost 3 - run the following command : d:\Boost\boost_1_44_0>bjam stage --build-type=complete --build-dir="d:\Boost144\ build" --toolset=gcc --stagedir="d:\Boost144" But I got the following errors : d:\Boost\boost_1_44_0>bjam stage --build-type=complete --build-dir="d:\Boost144\ build" --toolset=gcc --stagedir="d:\Boost144" notice: could not find main target stage notice: assuming it is a name of file to create. D:/Boost/boost_1_44_0/tools/build/v2/build\project.jam:737: in attribute warning: rulename $($(project).attributes).get expands to empty string D:/Boost/boost_1_44_0/tools/build/v2/build\project.jam:749: in project.target D:/Boost/boost_1_44_0/tools/build/v2\build-system.jam:707: in load d:\Boost\boost_1_44_0\tools\build\v2/kernel\modules.jam:283: in import d:\Boost\boost_1_44_0\tools\build\v2\kernel\bootst rap.jam:142: in boost-build d:\Boost\boost_1_44_0\boost-build.jam:17: in module scope D:/Boost/boost_1_44_0/tools/build/v2/build\project.jam:737: in project.attribute warning: rulename $($(project).attributes).get expands to empty string D:/Boost/boost_1_44_0/tools/build/v2/build\targets.jam:206: in object(project-ta rget)@43.__init__ D:/Boost/boost_1_44_0/tools/build/v2/kernel\class.jam:88: in new D:/Boost/boost_1_44_0/tools/build/v2/build\project.jam:749: in project.target D:/Boost/boost_1_44_0/tools/build/v2\build-system.jam:707: in load d:\Boost\boost_1_44_0\tools\build\v2/kernel\modules.jam:283: in import d:\Boost\boost_1_44_0\tools\build\v2\kernel\bootst rap.jam:142: in boost-build d:\Boost\boost_1_44_0\boost-build.jam:17: in module scope :/Boost/boost_1_44_0/tools/build/v2/build\project.jam:737: in project.attribute warning: rulename $($(project).attributes).get expands to empty string D:/Boost/boost_1_44_0/tools/build/v2/build\targets.jam:226: in object(project-ta rget)@43.get D:/Boost/boost_1_44_0/tools/build/v2\build-system.jam:720: in load d:\Boost\boost_1_44_0\tools\build\v2/kernel\modules.jam:283: in import d:\Boost\boost_1_44_0\tools\build\v2\kernel\bootst rap.jam:142: in boost-build d:\Boost\boost_1_44_0\boost-build.jam:17: in module scope D:/Boost/boost_1_44_0/tools/build/v2\build-system.jam:721: in load *** argument error * rule project.load ( jamfile-location ) * called with: ( ) * missing argument jamfile-location D:/Boost/boost_1_44_0/tools/build/v2/build\project.jam:53:see definition of rule 'load' being called d:\Boost\boost_1_44_0\tools\build\v2/kernel\modules.jam:283: in import d:\Boost\boost_1_44_0\tools\build\v2\kernel\bootst rap.jam:142: in boost-build d:\Boost\boost_1_44_0\boost-build.jam:17: in module scope Do you have an idea to solve my problem and build boost please ? Thx