尝试安装任何内容时出错

尝试安装任何内容时出错

好吧,我跳到了 Lubuntu,并且正在全新安装它...但我想继续将 elementary 安装到闪存驱动器并检查它,但不能,因为当我使用终端安装时mkusb,我收到此错误:

dps@chris-pc:~$ sudo apt-get install mkusb mkusb-nox usb-pack-efi
[sudo] password for dps: 
E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?

另外,当我尝试通过软件中心(发现)安装任何东西时,它显示:

   PolicyKit Error
   Incorrect permissions on /usr/lib/policykit-1/polkit-agent-helper-1 (needs to be setuid root)

有任何想法吗?

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