qmake no bluetooth

Question

I Have a project that uses QT Bluetooth and i managed to compile it up until today Today when calling QMake I get

Project MESSAGE: Warning: unknown QT: bluetooth         

the .pro file looks something like this:

######################################################################
# Automatically generated by qmake (3.0) Thu Sep 29 10:34:51 2016
######################################################################

QT += bluetooth
QT += core
QT -= gui

CONFIG += c++11
CONFIG += debug

TEMPLATE = app
TARGET = build/ankioverdrive
#INCLUDEPATH += .

LIBS += -lmosquittopp

LIBS += -L/usr/lib

INCLUDEPATH += /usr/include/

# Input
SOURCES += some/paths/to/files.cpp \

HEADERS += \
    some/paths/to/files.h \ 

running qmake --version which seemd to be the problem for some before gave me

QMake version 3.1
Using Qt version 5.9.5 in /usr/lib/x86_64-linux-gnu

I'm on Kubuntu 18.04

Answer 1

I fixed the Problem by reinstalling Qt via the qt-unified install tool for linux, and running the qmake file in that installPath

PathToInstallation/version/gcc_64/bin/qmake

this worked