QML module not found (Material)

[SushiTee]

I added the current Version as submodule to my project and edited the .pro and main.cpp like it's shown in the readme file.
I'm trying to use the module with Qt 5.8 and Qt Creator 4.2.1 using qmake. I'm on Windows.

When I'm building with mingw the app builds and starts like expected but when ever I do "import Material 0.3" Qt Creator is saying that it cannot find the module (QML module not found (Material)).
When I'm building using MSVC2015 it is the same but after the App starts it's giving me errors:

qrc://///QtQuick/Controls/Styles/Material/ButtonStyle.qml:40 ReferenceError: Units is not defined

I need help with this problem. Using this without auto complete in Qt Creator is not nice.

Cheers

[lit-uriy]

This problem is relevant for me.
I tried to build the DEMO using Qt 5.7