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Package packettracer is referring to Cisco Packet Tracer 7.3. My OS is Ubuntu 20.04.

I installed packettracer, but the package requires a qt-at-spi package that I could not find in the Ubuntu 20.04 repository.

$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

I searched for that package, but what I found is only qt-at-spi for ubuntu 18.04. I tried to install it, but it also requires other packages.

$ 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

I searched again for those other packages (libqt4-dbus, libqtcore4, libqtgui4), but what I found is only for Ubuntu versions below 20.04 (i.e 18.04, 19.04, 19.10), there are none for Ubuntu 20.04.

I keep trying to install those packages, but they depend on other unavailable packages again, and so on.

I have tried to install Qt-5. Qt-5.12.8 installed but I still did not get the qt-at-spi package.

Packettracer doesn't even seem to need qt-at-spi, as it runs properly without error. However, when I tried to install another package (whatever is it), there is a dependency error:

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).

So, I must run "apt --fix-broken install" first and uninstall packettracer before I can install another package. Then when that another package installed, I reinstall the packettracer again. It is annoying.

$ 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.

The question is:

  • Can you help to find qt-at-spi for ubuntu 20.04? or
  • Can I exclude packettracer from apt --fix-broken install?
Byte Commander
  • 110,243
xdnroot
  • 65

2 Answers2

3

Follow these steps :

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

I also put a video on YouTube https://www.youtube.com/watch?v=5FuBKG49bIY it shows the same process but could be more helpful.

Byte Commander
  • 110,243
0

On 20.04 focal. No dependency issues except for qt-at-spi.

In the directory where you downloaded PacketTracer_730_amd64.deb:

sudo dpkg -i *
sudo vi /var/lib/dpkg/status

Use / to search, and type qt-at-spi.

Use x to delete ", qt-at-spi", then <shift>:wq to write/save and quit.

sudo apt --fix-broken install

Thank you all!

Crusty Barnacle
  • 491