我刚刚将我的 Xubuntu 更新到 18.04，而且我已经没有蓝牙了。我尝试安装 blueman，这是错误：
nicolas@nicolas-UX530UX:~$ sudo apt-get install python3
[sudo] password for nicolas:
Reading package lists... Done
Building dependency tree
Reading state information... Done
python3 is already the newest version (3.6.5-3ubuntu1).
0 upgraded, 0 newly installed, 0 to remove and 3 not upgraded.
nicolas@nicolas-UX530UX:~$ sudo apt-get install blueman
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are …