issue in installing Hector_quadrotor on kinetic

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i have installed Hector_quadrotor on kinetic couple of times and it went through but i had to uninstall Ubuntu and ROS recently . now i cant install Hector_quadrotor anymore even though i use freshly installed Ubuntu 16.04 and ROS Kinetic ( same as when it was working fine). The link i followed for installing Hector_quadrotor is from here link text and now i face an error message when doing the last catkin_make from the link above. the error message is :

 CMake Error: Could not open file for write in copy operation /home/mastlab/catkin_ws/src/hector_quadrotor/hector_quadrotor_gazebo/urdf/quadrotor_plugins.gazebo.xacro.tmp
CMake Error: : System Error: Permission denied
CMake Error at hector_quadrotor/hector_quadrotor_gazebo/urdf/CMakeLists.txt:48 (configure_file):
configure_file Problem configuring file
-- Configuring incomplete, errors occurred!
See also "/home/mastlab/catkin_ws/build/CMakeFiles/CMakeOutput.log".
See also "/home/mastlab/catkin_ws/build/CMakeFiles/CMakeError.log".
Makefile:318: recipe for target 'cmake_check_build_system' failed
make: *** [cmake_check_build_system] Error 1
Invoking "make cmake_check_build_system" failed
mastlab@mastlab-VirtualBox:~/catkin_ws$

excuse my question if it might look silly because i am new to Linux and ROS. had anyone seen such an error before ? i think i did something wrong during the installation of either Ubuntu or ROS