Comment # 8 on bug 1218979 from Michael Dluhosch

Like suggested I created https://bugzilla.suse.com/show_bug.cgi?id=1219182
Maybe as an additional hint: When you first install rpm-build and then try to
install qt6-creator following error is shown:

Problem: nothing provides 'libQt6JsonRpc.so.6()(64bit)' needed by the to be
installed qt6-declarative-tools-6.4.2-150500.1.15.x86_64
 Solution 1: Following actions will be done:
  deinstallation of qml-autoreqprov-1.1-150400.1.4.noarch
  deinstallation of rpm-build-4.14.3-150400.59.3.1.x86_64
 Solution 2: do not install qt6-creator-9.0.2-bp155.1.22.x86_64
 Solution 3: break qt6-declarative-tools-6.4.2-150500.1.15.x86_64 by ignoring
some of its dependencies

So it might have also something to do with the qml-autoreqprov which is needed
by rpm-build.

But I agree the root cause is that qt6-declarative-tools cannot be installed.