sounak dey - 2017-09-20

Hello,
I was trying to build owlcpp in Ubuntu 14.04 with Boost version 1.65.1, Raptor library 2-2.0.15, libxml library version 2-2.9.0, Fact++ library version 1.6.3. When I fire the command "b2 release" from owlcpp library then I get the following error:

/home/sounak/OWL_CPP/boost_1_65_1/tools/build/src/build/toolset.jam:44: in toolset.using
ERROR: rule "ext/raptor.init" unknown in module "toolset".
/home/nei-admin/OWL_CPP/boost_1_65_1/tools/build/src/build/project.jam:1053: in using
external/jamfile.jam:15: in modules.load

I have tried with one older Raptor library version 2-2.0.8 but with same result.
Also the result is same if I fire the command: "b2 release owlcpp-py".

Is this a problem of path or library version ? I however have not tried with other older versions of Boost library. To me it seems that details about Raptor library is not being captured properly by "toolset-module".
Please suggest a solution.