multiple definition of qInitResources_

Thalessa

Hi,
I've been trying to build and execute the completer Example from the Qt website and it shows me this error when I try to build it:

error: multiple definition of `qInitResources_completer()'
:-1: error: collect2: error: ld returned 1 exit status

I'm on ubuntu 16.04 and I have copied these files from the published example with the exception of the completer.pro file :

~/completer.qrc
~/completer/fsmodel.cpp
~/completer/fsmodel.h
~/completer/main.cpp
~/completer/mainwindow.cpp
~/completer/mainwindow.h
~/completer/resources/wordlist.txt
~/completer/resources/countries.txt

I also executed this command on a terminal to come up with the completer.cpp file:

rcc -name "completer" -no-compress ~/completer/completer.qrc -o ~/completer/completer.cpp

Here's the content of completer.pro

QT       += core gui widgets
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = completer
TEMPLATE = app
DEFINES += QT_DEPRECATED_WARNINGS
CONFIG += c++11
SOURCES += \
        main.cpp \
        mainwindow.cpp \
    fsmodel.cpp \
    completer.cpp
HEADERS += \
        mainwindow.h \
    fsmodel.h

qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
#!isEmpty(target.path): INSTALLS += target

#requires(qtConfig(completer))
RESOURCES += ~/completer/completer.qrc
target.path = $$[completer]/completer
INSTALLS += target

There are several other posts on the forum about the completer example but I've found no discussion on this problem.
Thank you

Ratzz

@Thalessa said in multiple definition of qInitResources_:

I have copied these files from the published example

Can you try to run the example from the Qt dir (present in Examples\Qt-version\widgets\tools) and check if it gives same error?
You can go to Qt Creators example section to launch the example

Christian Ehrlicher

@Thalessa said in multiple definition of qInitResources_:

completer.cpp

You must not add this generated file to your SOURCES since it's automatically added when adding the .qrc file to RESOURCES. Therefore the file is compiled (and linked) twice.

Thalessa

@Ratzz and @Christian-Ehrlicher thanks to both of you for replying.

I've tried the example in qt dir and now it works.

I also had to add these lines in CMakeLists.txt :

qt5_add_resources(RSC completer.qrc)
# if next line is not added -> error but it will still work
set_property(SOURCE qrc_completer.cpp PROPERTY SKIP_AUTOMOC ON) 
add_executable(completer ${SOURCE} ${RSC})