Trying to build slicer 4.8.0 with Qt 5.9.2. I get really close to a full complete build, but PythonQt in CTK fails everytime with a laundry list of errors. I am using Visual Studio 2015 I turned off Slicer_USE_PYTHONQT_WITH_OPENSSL. I also tried turning off Slicer_USE_PYTHONQT_WITH_TCL and had th…

Did you follow the instructions here?: https://www.slicer.org/wiki/Documentation/Labs/Qt5-and-VTK8#Status I did that a few weeks ago, with no other changes, and successfully built against Qt 5.9.2 (VS2015 lib) installed with the Qt installer. 28 tests fail, but I think most of them are known issues…

Yep I changed the Slicer_REQUIRED_QT_VERSION to 5.9.2 which made the QT5_DIR come up and then I set that to my qtdirectory/lib/cmake/Qt5.

From an empty directory, if you configure using: cmake -DQt5_DIR:PATH=... There is no need to manually set Slicer_REQUIRED_QT_VERSION. If you are using cmake-gui or ccmake, just make sure you are NOT configuring a first time and then setting the Qt5_DIR variable. You need to set the Qt5_DIR var…

[image] danielbr: I built Qt with the following configure Waiting we test and finalize updates associated with building Qt from source, there is no problem downloading existing binaries. It just mean that if you do a debug build, you will not be able to use the QtDesigner or QtCreator and mak…

ok I will try this in a new directory. I will let it build overnight and see if that solves the issue. I will report back. Thanks!

Still not building pythonQt. So I am using the cmake gui. I created a new directory opened the cmake gui and set Qt5_DIR and QT_QMAKE_EXECUTABLE before configuring. Configured generated and opened the project. Started the build. Again most everything built but it is still failing to build pytho…

I usually create a .bat file that configures CMake using -D parameters. It is less work and more reproducible than setting CMake variables manually each time I need a clean rebuild.

FWIW, here’s the selections I used with the Qt online installer. I would also suggest to build from top-of-trunk because there are continuous improvements, and targeting 4.8 because it’s a “release” is meaningless for a non-default configuration. [image]

Ok I installed Qt using the Qt installer with the options you suggested. Everything built this time except for python. Python says “unresolved external symbol _Py_silent_invalid_parameter_handler referenced in function new_threadstate” in the libpython-shared project. I am used the top of the tru…

Remove the superbuild/[Python-2.7.13, python-build, python-prefix] directories and build again. Should be fixed by the following, but I don’t know if the commit was bumped in slicer yet: https://github.com/python-cmake-buildsystem/python-cmake-buildsystem/pull/195

Build Error PythonQt Visual Studio 2015 Qt 5.9.2

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Build Error PythonQt Visual Studio 2015 Qt 5.9.2

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