[求助]debian中aptitude出错

netman6y

我的debian正常工作了有一年多,前不久aptitude dist-upgrade出错,

出错信息如下:

Writing extended state information... Error!
E: I wasn't able to locate file for the lftp package. This might mean you need to manually fix this package.
E: Couldn't lock list directory..are you root?

我确定是root用户.无法定位lftp包,需要手动定位,我用locate lftp来定位,但下来怎么做?

lftp软件包出错,导致其他软件包不能正常安装,更新.

用dpkg求救无果

重装lftp出错:
dpkg -i lftp_3.5.10-1_i386.deb

(Reading database ... 79039 files and directories currently installed.)
Preparing to replace lftp 3.5.4-1 (using lftp_3.5.10-1_i386.deb) ...
Unpacking replacement lftp ...
No alternatives for ftp.
dpkg: warning - old post-removal script returned error exit status 1
dpkg - trying script from the new package instead ...
No alternatives for ftp.
dpkg: error processing lftp_3.5.10-1_i386.deb (--install):
subprocess new post-removal script returned error exit status 1
No alternatives for ftp.
dpkg: error while cleaning up:
subprocess post-removal script returned error exit status 1
Errors were encountered while processing:
lftp_3.5.10-1_i386.deb

存在二义性?

Help me, please!