Beta installation fails as Qt5 incompatibility

[Fabian]

So… Does anyone know what to do? Should I create a new post for more exposure, as I'm often told in the Google forums?

[spycrab]

If you're still getting the same error message as in the original post then you still haven't installed a sufficiently recent Qt version. If you can't get Qt 5.9 any other way just install it via the Qt installer.

[Fabian]

Wow, why do I not get notifications for this? I only revisited this threat to see what the most recent state was, so that I could write it into a new post, because I thought nobody had answered!

Anyway, I installed the Qt installer from here: https://www.qt.io/download-qt-installer?hsCtaTracking=9f6a2170-a938-42df-a8e2-a9f0b1d6cdce%7C6cb0de4f-9bb5-4778-ab02-bfb62735f3e5
I ran it two times, once with the latest stable version, once with 5.9.0, after both I tried `cmake ..` in the right folder again and I got the same output (which you can see in the initial post), even with the same version number of `Qt5Config.cmake`.

So, what now?

[Fabian]

Solved here: https://forums.dolphin-emu.org/Thread-problems-trying-to-install-beta-on-debian?pid=480116#pid480116