How to enable compilation with Qt 5.15.2 and Qt Creator 4.15 on Win10

[cfwdman]

Qt is new for me hence the following might be obvious:

• I installed the Qt components mentioned above on a win10 virtual machine.
• I forked this repo and downloaded it recursively with git..
• loading and "running" the Serial-Studio.pro project file with a MinGW 64-bit kit results in the following errors

1. no member named 'errorOccurred' in 'QTcpSocket' --> fixed
2. no member named 'swapItemsAt' in 'QStringList' --> fixed
3. 'QML_Element' does not name a type
4. 'textChange' was not declared in this scope
   I also tried to run on a ubuntu 20 machines with the same issues.

Since the Readme includes no other requirements on how to compile but to use QT (>5.15) and the project file I wonder what the specifics for building the app (on Windows) I am missing.
I like this project a lot but have the need to make some adjustments to the serial stream processing (no /* */ framing but only complete lines) and diagrams (for different visualisation needs)