wificontrol.wificommon.WiFiControlError: WiFiControl: subprocess call error Return code: 1

[agnoam]

Hey, I'm just trying to start on my raspberry pi an access point.
So I write this code:

import wificontrol

wifi = wificontrol.WiFiControl()
wifi.start_host_mode()

But when I run this code, its returns an exception:

Traceback (most recent call last):
  File "raspAP.py", line 4, in <module>
    wifi.start_host_mode()
  File "build/bdist.linux-armv7l/egg/wificontrol/wificontrol.py", line 60, in start_host_mode
  File "build/bdist.linux-armv7l/egg/wificontrol/hostapd.py", line 57, in start
  File "build/bdist.linux-armv7l/egg/wificontrol/wificommon.py", line 98, in execute_command
wificontrol.wificommon.WiFiControlError: WiFiControl: subprocess call error
Return code: 1
Command: systemctl start hostapd.service && sleep 2

So what this exception even mean ?