Qt 6 build - qt.qpa.plugin: Could not find the Qt platform plugin "xcb" in ""

nicmorais

So, I know this have been posted multiple times here, but none of the topics helped me solve this. The logs of the ./configure are here: https://controlc.com/6f559fa6

./configure  -eglfs  -confirm-license -opensource -plugin-sql-psql -sql-psql -xcb

Any tips? I've already installed all libxcb-* packages.

SGaist

Hi,

Which Linux distribution ?
Where did you install your custom build ?
How are you starting your application ?
Did you already used the QT_DEBUG_PLUGINS environment variable ?

nicmorais

Hello again SGaist! I'm running Debian Buster.
The files are at ~/qt6/qtbase. I just enter that directory and ran configure and make, so the build files are there, right?
I'm starting the application with ./Application.
I also set QT_DEBUG_PLUGINS, here's the result: https://controlc.com/cf8dd33a (Does not help much)

So it seems like libxcb was not built inside that ~/qt6/qtbase/plugins/platforms. I don't know if I have to install anything else.

SGaist

Did you call make install after the build ?

nicmorais

@SGaist Sorry for the delay
So, I tried cmake install . but there's the same error.

nicmorais

Update: I got it compiled by changing to development branch (6.3.0)! Thanks a lot for your help!