catkin_make error invoking j8 -8

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when i run catkin_make i get the following error: invoking "make -j8 -l8"failed. can someone help? This is what i get when i run catkin_make. I am very new to Ros

Generating dynamic reconfigure files from cfg/GeneralIO.cfg: /home/hand/workspace/devel/include/sr_ronex_drivers/GeneralIOConfig.h /home/hand/workspace/devel/lib/python2.7/dist-packages/sr_ronex_drivers/cfg/GeneralIOConfig.py
Generating dynamic reconfigure files from cfg/SPI.cfg: /home/hand/workspace/devel/include/sr_ronex_drivers/SPIConfig.h /home/hand/workspace/devel/lib/python2.7/dist-packages/sr_ronex_drivers/cfg/SPIConfig.py
../../catkin_generated/env_cached.sh: 16: exec: /home/hand/workspace/src/sr-ronex-indigo-devel/sr_ronex_drivers/cfg/GeneralIO.cfg: Permission denied
make[2]: *** [/home/hand/workspace/devel/include/sr_ronex_drivers/GeneralIOConfig.h] Error 126
make[2]: *** Waiting for unfinished jobs....
../../catkin_generated/env_cached.sh: 16: exec: /home/hand/workspace/src/sr-ronex-indigo-devel/sr_ronex_drivers/cfg/SPI.cfg: Permission denied
make[2]: *** [/home/hand/workspace/devel/include/sr_ronex_drivers/SPIConfig.h] Error 126
make[1]: *** [sr-ronex-indigo-devel/sr_ronex_drivers/CMakeFiles/sr_ronex_drivers_gencfg.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[  5%] [  5%] Built target sr_ronex_transmissions
[  5%] Built target gtest
[  5%] Built target nav_msgs_generate_messages_cpp
Built target nav_msgs_generate_messages_py
[  5%] Built target nav_msgs_generate_messages_lisp
[  5%] Built target _sr_edc_ethercat_drivers_generate_messages_check_deps_ActuatorInfo
[  5%] Built target _sr_edc_ethercat_drivers_generate_messages_check_deps_MotorTrace