qgis3 @3.10.0_0: fatal error: 'ui_qgswmssourceselectbase.h' file not found

[dershow]

I have qgis3 3.8.3 installed and working. I just tried to upgrade to 3.10.0 and it fails. I've attached my log file.

[gwright83]

I saw the same error as in the attached log this afternoon. Upgrade to 3.10.0 failed at the same point with the same message. Running Mojave 10.14.6; Macports 2.6.2.

[gwright83]

I deactivated the previously installed version (3.8.3) and rebuilt. It ran to completion and started correctly.

Looks like an old library is snarfed by the new build, resulting in a failure. IIRC, this has been a problem with Qgis for a while. Is there any way to remind the user to deactivate previously installed versions before updating?

[ryandesign (Ryan Carsten Schmidt)]

Greg, it's not clear if the problem you experienced was the same as the one experienced by dershow, since you did not attach a main.log file. dershow's log says:

:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_gis_qgis3/qgis3/work/QGIS-3_10_0/src/providers/wms/qgswmssourceselect.h:20:10: fatal error: 'ui_qgswmssourceselectbase.h' file not found
:info:build #include "ui_qgswmssourceselectbase.h"
:info:build          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Our buildbot, on which previous versions are never active when building, ​sees the same problem. So having a previous version active is not likely to have contributed to this problem.

It was also reported ​in homebrew (over 2 years ago!), but as a comment in a ticket about a different problem, and was therefore not addressed.

Later in the log, we see:

:info:build [  3%] Generating ui_qgswmssourceselectbase.h
:info:build cd /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_gis_qgis3/qgis3/work/build/src/ui && /opt/local/libexec/qt5/bin/uic -o /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_gis_qgis3/qgis3/work/build/src/ui/ui_qgswmssourceselectbase.h /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_gis_qgis3/qgis3/work/QGIS-3_10_0/src/ui/qgswmssourceselectbase.ui

So it's trying to use ui_qgswmssourceselectbase.h before having generated it. A classic parallel build problem. Veence, can you please report it to the developers of qgis3? We can work around it by disabling parallel building in the port until upstream fixes the dependencies of their build system:

use_parallel_build no

Until we do that, users can work around it with:

sudo port install qgis3 build.jobs=1

[mascguy (Christopher Nielsen)]

It looks like qgis3 has been building fine for quite a while - with parallels builds enabled - and has been updated numerous times since this ticket was originally opened.

Is this still an issue?

[dershow]

I have switched over to just downloading the QGIS app from their website, so I haven't tested it in a while.

[mascguy (Christopher Nielsen)]

Let's close as fixed then. If anyone is still seeing this issue, we can reopen.