Qt for Device Creation Installer crashes on installing Creator

On one of our systems, installing Creator from the Qt for Device Creation installer crashes every time. The backtrace I get is:

(gdb) bt
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1 0x00007ffff5a0f801 in __GI_abort () at abort.c:79
#2 0x00000000012edf35 in qt_message_output(QtMsgType, QMessageLogContext const&, QString const&) ()
#3 0x00000000004dcd13 in messageHandler(QtMsgType, QMessageLogContext const&, QString const&) ()
#4 0x00000000012ebd6f in qt_message(QtMsgType, QMessageLogContext const&, char const*, __va_list_tag*) ()
#5 0x00000000012ed936 in QMessageLogger::fatal(char const*, ...) const ()
#6 0x000000000042cda6 in SDKApp<QApplication>::notify(QObject*, QEvent*) ()
#7 0x00000000014b5198 in QCoreApplication::notifyInternal2(QObject*, QEvent*) ()
#8 0x000000000150483e in QTimerInfoList::activateTimers() ()
#9 0x000000000150272d in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
#10 0x00000000006d38bd in QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
#11 0x00000000014b3195 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) ()
#12 0x00000000014bc61e in QCoreApplication::exec() ()
#13 0x000000000042b53c in InstallerBase::run() ()
#14 0x0000000000422493 in main ()

Not sure why the "file missing" message comes up. The package, containing the file (gnulib) is installed.

However, maybe you can read something useful out of this backtrace.

I tried on a cleany installed Kubuntu 18.04 in a virtual machine and it works fine. I would still be thankful for any hints on what is going wrong on my system that leads to this crash.