edward lam


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Fedora 30 H18 build 398+ issues March 10, 2020, 8:51 a.m.

PS. I didn't figure out why upgrading the packages on the system also seems to workaround the problem. But the error is due to problems with loading shared libraries so the package updates could have shifted things just enough to avoid it.

PPS. This issue is related to Qt so it can only show up when non-ABI compatible Qt libraries are installed on the system. The standard distros all seem to default to GNOME these days which is why it was never noticed. On Fedora 31, the Qt libraries seem to be ABI compatible enough to avoid the problem.

Houdini 18.0.391 crashes on launch March 10, 2020, 8:50 a.m.

For reference, I've posted a workaround here: https://www.sidefx.com/forum/topic/72381/?page=1#post-306414 [www.sidefx.com]

Fedora 30 H18 build 398+ issues March 10, 2020, 8:42 a.m.

I recreated the VM from scratch again and figured out the change that started causing this problem which was inadvertently introduced for a change in preparation for Python 3. To workaround this, you can copy Qt.pyand Qt.pycfrom any older 18.0 installation you have or use the attached.

Here's a set of sample steps:
cd /opt/hfs18.0.391/houdini/python2.7libs/hutil
sudo mv Qt.py Qt.py.orig
sudo mv Qt.pyc Qt.pyc.orig
sudo cp /opt/hfs18.0.389/houdini/python2.7libs/hutil/Qt.{py,pyc} .