cannot find qsqlodbc4 and QtCore

valeriy

I transfer project from version 4 to 5. my experience with Qt is very small.
when I build the project, i get errors:

cannot find -lC:\Qt\5.5\mingw492_32/plugins/sqldrivers/qsqlodbc4
cannot find -lc:/Qt/4.6.3/lib/QtCore
error: ld returned 1 exit status

TEMPLATE = app
TARGET = monitor
DESTDIR = ./Debug
QT += network sql
CONFIG += debug
DEFINES += QT_XML_LIB QT_SQL_LIB QT_NETWORK_LIB
INCLUDEPATH += ./GeneratedFiles \
    ./GeneratedFiles/Debug \
    . \
    ./release \
    ./debug \
    $(QTDIR)/mkspecs/win32-msvc2008
LIBS += -L"$(QTDIR)/plugins/sqldrivers" \
    -l$(QTDIR)/plugins/sqldrivers/qsqlodbc4 \
    -lgdi32 \
    -lcomdlg32 \
    -loleaut32 \
    -limm32 \
    -lwinmm \
    -lwinspool \
    -lws2_32 \
    -lole32 \
    -luser32 \
    -ladvapi32 \
    -lmsimg32 \
    -lshell32 \
    -lc:/Qt/4.6.3/lib/QtCore \
    -lkernel32 \
    -luuid

DEPENDPATH += .
MOC_DIR += ./GeneratedFiles/debug
OBJECTS_DIR += debug
UI_DIR += ./GeneratedFiles
RCC_DIR += ./GeneratedFiles

#Include file(s)
include(monitor.pri)

#Windows resource file
win32:RC_FILE = monitor.rc

I tried correcting -lc: /Qt/4.6.3/lib/QtCore \ on -lc: /Qt/5.5/mingw492_32/lib/Qt5Core
qsqlodbc4 on qsqlodbc.dll
it exists in a folder C:\Qt\5.5\mingw492_32\plugins\sqldrivers
pls help :)

SGaist

Hi and welcome to devnet,

Some things that are looking suspicious in your .pro file:

Why do you have the mkspecs path in your INCLUDEPATH ?
Why do you have the path the the sqldrivers in your linker path list ?
Why are you linking directly to QtCore and qsqlodbc4 ?
Why are there so many Windows libraries in your LIBS list ? Unless you are using some Windows API directly all the libraries needed will get linked properly based on the Qt modules you are using.
Why QT_XML_LIB QT_SQL_LIB QT_NETWORK_LIB in DEFINES ?
Based on QT_XML_LIB, you are missing QT += xml

valeriy

@SGaist said:

Hi and welcome to devnet,

Some things that are looking suspicious in your .pro file:

Why do you have the mkspecs path in your INCLUDEPATH ?

Why do you have the path the the sqldrivers in your linker path list ?

Why are you linking directly to QtCore and qsqlodbc4 ?

Why are there so many Windows libraries in your LIBS list ? Unless you are using some Windows API directly all the libraries needed will get linked properly based on the Qt modules you are using.

Why QT_XML_LIB QT_SQL_LIB QT_NETWORK_LIB in DEFINES ?

Based on QT_XML_LIB, you are missing QT += xml

I did not write it because I do not know
but i fixed .pro file:

QT       += core gui network sql multimedia xml

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = monitor
TEMPLATE = app
CONFIG += debug
DEFINES += QT_XML_LIB QT_SQL_LIB QT_NETWORK_LIB
INCLUDEPATH += ./GeneratedFiles \
    ./GeneratedFiles/Debug \
    . \
    ./release \
    ./debug

DEPENDPATH += .
MOC_DIR += ./GeneratedFiles/debug
OBJECTS_DIR += debug
UI_DIR += ./GeneratedFiles
RCC_DIR += ./GeneratedFiles

#Include file(s)
include(monitor.pri)

#Windows resource file
win32:RC_FILE = monitor.rc

what do you say?

and now I have new errors, i can create a new topic or add to this?)
Qt5 minGW
undefined reference to more_counter::more_counter(QDialog*)
undefined reference to more_counter::setpParent(IPWindow*)
undefined reference to more_counter::setName(QString)
class that declares some private fields:

more_counter* moredlg;
etc.

error occurs in lines:

       moredlg = new more_counter();
       moredlg->setpParent(this);
       moredlg->setName(master->deviceDescr.name);
       moredlg->iShow();

class more_counter announced:
ifdef / def / endif - exist

class more_counter : public QDialog
{
    Q_OBJECT
 
public:
    more_counter(QDialog *parent = 0);
    ~more_counter();
 
public:
    void iShow();
    void setpParent(IPWindow* prt);
    void setName(QString name);
 
private:
    Ui::more_counter ui;
    
    IPWindow* parent;
    more_count* list;
    
    void GetData();
    void keyPressEvent(QKeyEvent *event);
        
private slots:
    void on_pb_close_clicked();
    
};
In another header is:

namespace Ui {
class more_counter: public Ui_more_counter {};
}
I tried lot of options, but there is no result :(

SGaist

The DEFINES still don't make sense and unless you are generating headers as part of your build (which doesn't seem to be the case) There's no need of the paths added to INCLUDEPATH.

The errors you are getting indicates that the class is not built.