这是什么意思“您没有 /dev/ttyACM1 设备的权限！”？

我一直在尝试通过 wammu 将我的诺基亚 E65 手机连接到我的 Ubuntu 12.04。. 我尝试了“自动搜索电话”选项。. 但是我在屏幕上收到这样的错误消息 :

Wammu is now searching for phone:
You don't have permissions for /dev/ttyS0 device!
You don't have permissions for /dev/ttyS1 device!
You don't have permissions for /dev/ttyS2 device!
You don't have permissions for /dev/ttyS3 device!
You don't have permissions for /dev/ttyS4 device!
You don't have permissions for /dev/ttyS5 device!
You don't have permissions for /dev/ttyS6 device!
You don't have permissions for /dev/ttyS7 device!
You don't have permissions for /dev/ttyS8 device!
You don't have permissions for /dev/ttyS9 device!
You don't have permissions for /dev/ttyS10 device!
You don't have permissions for /dev/ttyS11 device!
You don't have permissions for /dev/ttyS12 device!
You don't have permissions for /dev/ttyS13 device!
You don't have permissions for /dev/ttyS14 device!
You don't have permissions for /dev/ttyS15 device!
You don't have permissions for /dev/ttyS16 device!
You don't have permissions for /dev/ttyS17 device!
You don't have permissions for /dev/ttyS18 device!
You don't have permissions for /dev/ttyS19 device!
You don't have permissions for /dev/ttyACM0 device!
You don't have permissions for /dev/ttyACM1 device!
Discovering Bluetooth devices using PyBluez
Could not access Bluetooth subsystem (error accessing bluetooth device)
All finished, found 0 phones
No phone has been found!

这是什么意思？ 如何克服这个错误？

提前致谢。.