error in making file ! [closed]

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when i make hector_quadrotor_demo i have one failed make file! there is Build failures in hector_gazebo_plugins!

can anyone help me?

Build failures with context:

hector_gazebo_plugins
mkdir -p bin
cd build && cmake -Wdev -DCMAKE_TOOLCHAIN_FILE=/opt/ros/groovy/share/ros/core/rosbuild/rostoolchain.cmake  ..
[rosbuild] Building package hector_gazebo_plugins
-- Using CATKIN_DEVEL_PREFIX: /home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build/devel
-- Using CMAKE_PREFIX_PATH: /opt/ros/groovy
-- This workspace overlays: /opt/ros/groovy
-- Found gtest sources under '/usr/src/gtest': gtests will be built
-- Using CATKIN_TEST_RESULTS_DIR: /home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build/test_results
-- catkin 0.5.65
[rosbuild] Including /opt/ros/groovy/share/roscpp/rosbuild/roscpp.cmake
[rosbuild] Including /opt/ros/groovy/share/rospy/rosbuild/rospy.cmake
-- Configuring done
-- Generating done
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_TOOLCHAIN_FILE


-- Build files have been written to: /home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build
cd build && make -j4 -l4
make[1]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[2]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Leaving directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Leaving directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
[  0%] Built target rospack_genmsg_libexe
[  0%] Built target rosbuild_premsgsrvgen
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Leaving directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
[ 22%] Built target ROSBUILD_gensrv_py
make[3]: Leaving directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
[ 33%] Built target ROSBUILD_gensrv_cpp
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Leaving directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
[ 33%] Built target rospack_gensrv
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Leaving directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Leaving directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
[ 33%] [ 33%] Built target rospack_gensrv_all
Built target rosbuild_precompile
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Leaving directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Leaving directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Leaving directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
Linking CXX shared library ../lib/libhector_gazebo_ros_gps.so
make[3]: Leaving directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
Linking CXX shared library ../lib/libdiffdrive_plugin_6w.so
Linking CXX shared library ../lib/libhector_gazebo_ros_magnetic.so
make[3]: Entering directory `/home/masoud/hector_quadrotor_tutorial/hector_gazebo/hector_gazebo_plugins/build'
Linking CXX shared library ../lib/libhector_gazebo_ros_imu.so
/usr/bin/ld: cannot find /usr/lib/libpython2.7.so
collect2: error: ld returned 1 exit status
make[3]: *** [../lib/libhector_gazebo_ros_imu.so ...