Missing dependencies in .deb on Debian

[ghost]

Tribler version/branch+revision:

7.8.0 , with:
wget https://github.com/Tribler/tribler/releases/download/v7.8.0/tribler_7.8.0_all.deb
apt install ./tribler_7.8.0_all.deb

Operating system and version:

Debian: Linux debian 4.19.0-14-amd64 #1 SMP Debian 4.19.171-2 (2021-01-30) x86_64 GNU/Linux

Steps to reproduce the behavior:

Install tribler, try to start it

Expected behavior:

It starts

Actual behavior:

It does not start

Relevant log file output:

Fatal Python error: Aborted

Current thread 0x00007fa9c016d740 (most recent call first):
File "tribler_gui/single_application.py", line 28 in init
File "tribler_gui/tribler_app.py", line 25 in init
File "run_tribler.py", line 164 in

---

What I think is the case is that a dependency was missed/forgotten/accidentally removed.
If I manually install libqt5gui5 (apt install libqt5gui5), things work find afterwards.

I guess whoever has been testing this already had qt5 installed, or it's always available on Ubuntu, or someone never runs apt autoremove.

Probably libqt5gui5 just needs to be added to https://github.com/Tribler/tribler/blob/main/build/debian/tribler/DEBIAN/control
But I'm no debian package expert, don't quote me on it :)

[xoriole]

@cranphin Thank you for reporting. It is interesting to know there is a qt dependency issue in Debian. Actually, Qt5 should be bundled into the installer itself and does not require adding a dependency declaration in Debian/control file. Our deployment tests on Ubuntu 20.04 were running fine so we did not catch this. We'll investigate more on this and publish a fix if necessary.

[ghost]

Nice, let me know if you need any more details :)
If I remember correctly, it's a Debian server build with the xfce desktop dependency added, so pretty much vanilla debian with 'Xfce desktop environment'.
Again, there's a good chance it's different from most systems in that qt5 wasn't pulled in, most systems would have something qt5 based installed :)

[drew2a]

Update: checked on a fresh Debian 10. Works fine.

$ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 10 (buster)"
NAME="Debian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

$ uname -r
4.19.0-10-amd64

[ghost]

What does apt list --installed give? :)

[ghost]

Or apt list --installed | grep qt5 if you want something more manageable :)

[drew2a]

@cranphin apt list --installed | grep qt5 gives an empty list :)

[ghost]

Ha, fair, them I'm at a loss where the difference lies :)

[ghost]

I should do a remove on the package I installed to add the dependencies, then autoremove, then see what it actually removes, and then see if tribler stops working again, maybe it's a dependency of qt itself or so :)

[ghost]

Ok, checked all the dependencies, you're right that the qt5 ones aren't needed.
Instead the following dependencies of qt5 itself were all needed, remove any from this list stops Tribler from starting:

• libxcb-render-util0
• libxcb-keysyms1
• libxcb-randr0
• libxcb-image0
• libxcb-xkb1
• libxkbcommon-x11-0
• libxcb-icccm4

[void-spark]

For anyone who found this to resolve issues with 7.10.0, this might help you (it's an ugly hack, but it works):
cd /usr/lib/x86_64-linux-gnu/
ln -s libxcb-util.so.0.0.0 libxcb-util.so.1

[xoriole]

The latest version 7.10 works on Debian, closing this issue.
Similar issue: #6216