Traceback already address in use

btproxy_traceback_address_in_use

Traceback (most recent call last):
  File "/usr/local/bin/btproxy", line 5, in <module>
    pkg_resources.run_script('btproxy==0.1', 'btproxy')
  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 528, in run_script
    self.require(requires)[0].run_script(script_name, ns)
  File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 1394, in run_script
    execfile(script_filename, namespace, namespace)
  File "/usr/local/lib/python2.7/dist-packages/btproxy-0.1-py2.7-linux-x86_64.egg/EGG-INFO/scripts/btproxy", line 39, in <module>
    btproxy.mitm()
  File "/usr/local/lib/python2.7/dist-packages/btproxy-0.1-py2.7-linux-x86_64.egg/libbtproxy/mitm.py", line 535, in mitm
    server_sock = self.start_service(service)
  File "/usr/local/lib/python2.7/dist-packages/btproxy-0.1-py2.7-linux-x86_64.egg/libbtproxy/mitm.py", line 267, in start_service
    server_sock.bind(addrport)
  File "build/bdist.linux-x86_64/egg/bluetooth/bluez.py", line 178, in bind
_bluetooth.error: (98, 'Address already in use')