[Errno 13] Permission denied -roslaunch

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ROS KINETIC PROBLEM DESCRIPTION: Got the following Error when roslaunch my launchfile.

File "/opt/ros/kinetic/lib/python2.7/dist-packages/roslaunch/loader.py", line 491, in param_value
    p = subprocess.Popen(shlex.split(command), stdout=subprocess.PIPE)
  File "/usr/lib/python2.7/subprocess.py", line 711, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1343, in _execute_child
    raise child_exception
OSError: [Errno 13] Permission denied