gluex software installation erro

[zihlmann]

To whom it may concern:
trying to install the full gluex software on stand-alone Ubuntu 20.04 system

getting the following error:

make[1]: Entering directory '/home/zihlmann/GLUEX/gluex_top/diracxx'
cd /home/zihlmann/GLUEX/gluex_top/diracxx/Diracxx-2.0.2; \
mkdir -p build; \
cd build; \
cmake -DCMAKE_INSTALL_PREFIX=/home/zihlmann/GLUEX/gluex_top/diracxx/Diracxx-2.0.2 \
    -DPYTHON_WITH_VERSION=python3 \
    -DCMAKE_VERBOSE_MAKEFILE:BOOL=ON ..
CMake Error at /lib/x86_64-linux-gnu/cmake/Boost-1.71.0/BoostConfig.cmake:117 (find_package):
  Could not find a package configuration file provided by "boost_python3"
  (requested version 1.71.0) with any of the following names:

    boost_python3Config.cmake
    boost_python3-config.cmake

  Add the installation prefix of "boost_python3" to CMAKE_PREFIX_PATH or set
  "boost_python3_DIR" to a directory containing one of the above files.  If
  "boost_python3" provides a separate development package or SDK, be sure it
  has been installed.
Call Stack (most recent call first):
  /lib/x86_64-linux-gnu/cmake/Boost-1.71.0/BoostConfig.cmake:182 (boost_find_component)
  /usr/share/cmake-3.16/Modules/FindBoost.cmake:443 (find_package)
  src/CMakeLists.txt:6 (find_package)


-- Configuring incomplete, errors occurred!
See also "/home/zihlmann/GLUEX/gluex_top/diracxx/Diracxx-2.0.2/build/CMakeFiles/CMakeOutput.log".
make[1]: *** [/home/zihlmann/GLUEX/gluex_top/build_scripts/Makefile_diracxx:78: /home/zihlmann/GLUEX/gluex_top/diracxx/Diracxx-2.0.2/.cmake_done] Error 1
make[1]: Leaving directory '/home/zihlmann/GLUEX/gluex_top/diracxx'
make: *** [/home/zihlmann/GLUEX/gluex_top/build_scripts/Makefile_all:277: diracxx_make] Error 2
gluex_install.sh info: done