Linux the only clue is that QtAssistant does not start. libHelp.so , Several user interface In QtCreator--- libxslt.so problem? Ihave libxslt.1.1--- 5.3.0 works good
This problem is not limited to QtAssistant but seems to affect the whole 5.3.1 release. I think it is that libxslt.1.1 supplied in linux Fedora 20 is not compatible. I am not sure if it affects other linux distributions.
the xslt version is libxslt.so1.1.28.