openSUSE Leap 15.1

Trying to build a Qt application (Zboss); application requires QSerialPort which does not appear to be available through the package manager; obtained
libqt5-qtserialport.ymp for Leap 15.1 through the open SUSE website, but this will not install. Has anybody come across a similar problem and found a solution?
Thanks in advance.

Should be in the OSS Repo.

zypper in libQt5SerialPort5

as root should install it.

sudo zypper install libQt5SerialPort5


[sudo] password for root: 
Loading repository data...
Reading installed packages...
'libQt5SerialPort5' is already installed.
There is an update candidate for 'libQt5SerialPort5' from vendor 'obs://build.opensuse.org/KDE', while the current vendor is 'openSUSE'. Use 'zypper install libQt5SerialPort5-5.15.1-lp151.1.1.x86_64' to install this candidate.
Resolving package dependencies...

Despite the above indicating already installed, opening the Zboss project in Qt Creator gives:

Project ERROR: Unknown module(s) in QT: serialport

Not keen on installing libQt5SerialPort5-5.15.1-lp151.1.1.x86_64, since looks very disruptive (lots of package dependency changes); don’t know enough about ‘obs://build.opensuse.org/KDE’.