”这个软件“是dpkg。

”问题“是安装abdownloadmanager提示”post-installation脚本子进程返回错误状态3“。

标题像引流新闻一样，内容就一张图，哪怕你把错误内容贴出来我都当你努力过了。

(Reading database ... 341026 files and directories currently installed.)

Preparing to unpack .../ABDownloadManager_1.5.2_linux_x64.deb ...

Unpacking abdownloadmanager (1.5.2-1) over (1.5.2-1) ...

Setting up abdownloadmanager (1.5.2-1) ...

An error occurred while applying changes:

An error occurred while applying changes: xdg-desktop-menu: No writable system menu directory found.

dpkg: warning: old abdownloadmanager package pre-removal script subprocess returned error exit status 3

dpkg: trying script from the new package instead ...

dpkg: ... it looks like that went OK

xdg-desktop-menu: No writable system menu directory found.

dpkg: error processing package abdownloadmanager (--install):

installed abdownloadmanager package post-installation script subprocess returned error exit status 3

Errors were encountered while processing:

abdownloadmanager

虽然安装失败了，但是在用update命令时就会出现这个错误提示，不知道如何处理。

也卸载不了

Running dpkg

Removing abdownloadmanager (amd64)

Preparing for removal of abdownloadmanager (amd64)

installed abdownloadmanager package pre-removal script subprocess returned error exit status 3

An error occurred while applying changes: abdownloadmanager

installed abdownloadmanager package pre-removal script subprocess returned error exit status 3

问题已解决

解决方法就是在系统盘，用管理员身份打开系统文件夹，然后用搜索工具，搜索与该软件相关的所有文件，然后全部删除。

最后用update命令升级，不再有该问题的提示。