包裹数据包追踪器指的是Cisco Packet Tracer 7.3。我的操作系统是 Ubuntu 20.04。
我安装了 packettracer，但是该软件包需要一个qt-在spi我在 Ubuntu 20.04 存储库中找不到该软件包。
$sudo dpkg -i PacketTracer_730_amd64.deb
Selecting previously unselected package packettracer.
(Reading database ... 199702 files and directories currently installed.)
Preparing to unpack .../PacketTracer_730_amd64.deb ...
Unpacking packettracer (7.3.0) ...
dpkg: dependency problems prevent configuration of packettracer:
packettracer depends on qt-at-spi; however:
Package qt-at-spi is not installed.
dpkg: error processing package packettracer (--install):
dependency problems - leaving unconfigured
Processing triggers for gnome-menus (3.36.0-1ubuntu1) ...
Processing triggers for desktop-file-utils (0.24-1ubuntu2) ...
Processing triggers for mime-support (3.64ubuntu1) ...
Processing triggers for shared-mime-info (1.15-1) ...
Errors were encountered while processing:
packettracer
我搜索了该包，但我找到的只是qt-在spi对于 Ubuntu 18.04。我尝试安装它，但它还需要其他包。
$ sudo dpkg -i qt-at-spi_0.4.0-8_amd64.deb
Selecting previously unselected package qt-at-spi:amd64.
(Reading database ... 202991 files and directories currently installed.)
Preparing to unpack .../qt-at-spi_0.4.0-8_amd64.deb ...
Unpacking qt-at-spi:amd64 (0.4.0-8) ...
dpkg: dependency problems prevent configuration of qt-at-spi:amd64:
qt-at-spi:amd64 depends on libqt4-dbus (>= 4:4.8.0); however:
Package libqt4-dbus is not installed.
qt-at-spi:amd64 depends on libqtcore4 (>= 4:4.8~); however:
Package libqtcore4:amd64 is not installed.
qt-at-spi:amd64 depends on libqtgui4 (>= 4:4.8~); however:
Package libqtgui4 is not installed.
dpkg: error processing package qt-at-spi:amd64 (--install):
dependency problems - leaving unconfigured
Errors were encountered while processing:
qt-at-spi:amd64
我再次搜索了其他软件包（libqt4-dbus、libqtcore4、libqtgui4），但我发现的仅适用于 20.04 以下的 Ubuntu 版本（即 18.04、19.04、19.10），没有适用于 Ubuntu 20.04 的软件包。
我继续尝试安装这些软件包，但它们又依赖于其他不可用的软件包，等等。
我尝试安装Qt-5。安装了 Qt-5.12.8，但我仍然没有得到qt-在spi包裹。
Packettracer 似乎甚至不需要qt-在spi，因为它可以正常运行，没有错误。但是，当我尝试安装另一个包（不管它是什么）时，出现了依赖性错误：
packettracer : Depends: qt-at-spi but it is not installable
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).
因此，我必须先运行“apt --fix-broken install”并卸载 packettracer，然后才能安装另一个软件包。然后，当另一个软件包安装完成后，我又重新安装了 packettracer。这很烦人。
$ sudo apt --fix-broken install
Reading package lists... Done
Building dependency tree
Reading state information... Done
Correcting dependencies... Done
The following packages will be REMOVED:
packettracer
0 upgraded, 0 newly installed, 1 to remove and 1 not upgraded.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
问题是：
- 您能帮忙找到适用于 ubuntu 20.04 的 qt-at-spi 吗？或者
- 我可以从 apt --fix-broken install 中排除 packettracer 吗？
答案1
按着这些次序 ：
cd Desktop
mkdir working-dir
cd working-dir
cp ~/Downloads/PacketTracer_730_amd64.deb .
ls
wget http://ftp.br.debian.org/debian/pool/main/d/double-conversion/libdouble-conversion1_3.1.0-3_amd64.deb http://archive.ubuntu.com/ubuntu/pool/main/libj/libjpeg-turbo/libjpeg-turbo8_2.0.3-0ubuntu1_amd64.deb http://archive.ubuntu.com/ubuntu/pool/main/libj/libjpeg8-empty/libjpeg8_8c-2ubuntu8_amd64.deb
ls -l
chmod +x *
ls -l
sudo dpkg -i *
sudo featherpad /var/lib/dpkg/status #featherpad here, is my text editor
#ctrl+f (search) > Depends: libdouble-conversion1, qt-at-spi > (delete-this-line) > save & close
sudo apt --fix-broken install
packettracer
我还在 YouTube 上发布了一个视频https://www.youtube.com/watch?v=5FuBKG49bIY它展示了相同的过程但可能会更有帮助。
答案2
在 20.04 focus 上。除 qt-at-spi 外，没有依赖性问题。
在下载的目录中PacketTracer_730_amd64.deb：
sudo dpkg -i *
sudo vi /var/lib/dpkg/status
使用/搜索，然后输入qt-at-spi。
使用x删除“，qt-at-spi”，然后<shift>:wq写入/保存并退出。
sudo apt --fix-broken install
谢谢你们！