This is what I discovered.
On Ubuntu 16.10 the following packages: `pyqt5-dev pyqt5-dev-tools
pyqt5.qsci-dev` seem to be the Qt 5.7 version.
I removed them and reinstalled to confirm. Then I deleted the build
folder and started over.
The build stops at 95% and doing a further `make qgis -j3` completes the
build (I have 4 processor slots but others seem suggest doing 4-1 (don't
know why), and running `./output/bin/qgis` from the build directory
works.
I get a Python Error screen which says:
`Couldn't load PyQt.
Python support will be disabled.
Traceback (most recent call last):
File "", line 1, in
ImportError: /usr/lib/x86_64-linux-gnu/libQt5Core.so.5: version `Qt_5.7'
not found (required by
/usr/local/lib/python3.5/dist-packages/PyQt5/QtCore.so)`
I don't think this problem is specific to me but would affect any Ubuntu
16.10 64-bit system. I could be wrong and would appreciate any help
offered.
Does anyone know how to install version 5.6.1 of `pyqt5-dev
pyqt5-dev-tools pyqt5.qsci-dev`? Or alternately does anyone know how to
install the debian package for Qt 5.7, which hopefully has the modified
C++ header files and WebKit as the Qt Maintenace tool doesn't provide a
localized version with the appropriate C++ header files?
Gordon
On 2017-02-07 23:02, Nyall Dawson wrote:
On 8 February 2017 at 13:49, <[email protected]> wrote:
Due to previous error, mentioned in a early post, I installed `geos
3.6.1`
and because build still failed, I place header file `geos_c.h` in
src/core/geometry folder and replace `<geos_c.h>` with `"geos_c.h"` in
`qgsgeometry.h`. This may not have been necessary but I wanted to
make it
clear which header I expected to be used.
At about 16% output from build shows:
`/home/gordon/dev/cpp/QGIS/src/core/qgsvectorfilewriter.cpp: In member
function ‘void QgsVectorFileWriter::init(QString, QString, const
QgsFields&,
QgsWkbTypes::Type, QgsCoordinateReferenceSystem, const QString&,
QStringList, QStringList, QString*,
QgsVectorFileWriter::FieldValueConverter*, const QString&,
QgsVectorFileWriter::ActionOnExistingFile)’:
/home/gordon/dev/cpp/QGIS/src/core/qgsvectorfilewriter.cpp:327:55:
warning:
suggest braces around empty body in an ‘else’ statement [-Wempty-body]
QgsDebugMsg( "Opened data source in update mode" );`
Thanks! Fixed in
https://github.com/qgis/QGIS/commit/2f68d1a7c3f4c7e2137dc20458556facf199d79f
^
At about 90% output from build shows:
`Traceback (most recent call last):
File "../../../../scripts/pyuic-wrapper.py", line 26, in <module>
import qgis.PyQt.uic.pyuic
File
"/home/gordon/dev/cpp/QGIS/build/output/python/qgis/__init__.py",
line 28, in <module>
from qgis.core import QgsFeature, QgsGeometry
File
"/home/gordon/dev/cpp/QGIS/build/output/python/qgis/core/__init__.py",
line
34, in <module>
from qgis._core import *
ImportError: /usr/lib/x86_64-linux-gnu/libQt5Network.so.5: symbol
_Z15qIsEffectiveTLDRK7QString, version Qt_5 not defined in file
libQt5Core.so.5 with link time reference
python/plugins/db_manager/CMakeFiles/zzz-db_manager-15-depend.dir/build.make:72:
recipe for target
'python/plugins/db_manager/ui_DlgAddGeometryColumn.py'
failed
make[2]: *** [python/plugins/db_manager/ui_DlgAddGeometryColumn.py]
Error 1
CMakeFiles/Makefile2:4925: recipe for target
'python/plugins/db_manager/CMakeFiles/zzz-db_manager-15-depend.dir/all'
failed
make[1]: ***
[python/plugins/db_manager/CMakeFiles/zzz-db_manager-15-depend.dir/all]
Error 2
make[1]: *** Waiting for unfinished jobs....`
Anyone know how to fix this issue? I used Python3.
Not sure on this one - did you clean your build folder after resolving
the dependency issues?
Nyall
At about 95% `make -j3` terminated before `qgis` executable built.
Gordon
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