MySql Driver not loaded , Note: i tried all the existed forums problems and didn't work

[Christian Ehrlicher]

@jsulm said in MySql Driver not loaded , Note: i tried all the existed forums problems and didn't work:

I'm asking because you used qmake without absolute path.

And because the plugin name is wrong - the '4' looks suspicious.

[MostafaEzzat]

@jsulm

i did use

mingw32-make sub-mysql

then

mingw32-make install

but i'm not sure i use the right path because i was running this software on linux before
but this my .pro file
should i change the path from .pro file or options

#-------------------------------------------------
#
# Project created by QtCreator 2018-12-24T22:54:39
#
#-------------------------------------------------
#

QT  += core gui sql
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets designer

TARGET = Hospital-ClinicSoftware
TEMPLATE += app lib libs

# The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0



CONFIG += c++11 designer plugins plugin

SOURCES += \
        main.cpp \
        mainwindow.cpp \
    mainprocess.cpp \
    mysqldatabase.cpp \
    showingdata.cpp \
    delgate.cpp \
    profile3.cpp \
    profile.cpp \
   multipagewidget.cpp \
    multipagewidgetplugin.cpp \
    multipagewidgetcontainerextension.cpp \
     multipagewidgetextensionfactory.cpp \


    mysqldatabase.cpp

HEADERS += \
         mainwindow.h \
    mainprocess.h \
    showingdata.h \
    delgate.h \
    profile3.h \
    profile.h \
    multipagewidget.h \
              multipagewidgetplugin.h \
              multipagewidgetcontainerextension.h \
              multipagewidgetextensionfactory.h \
    mysqldatabase.h



FORMS += \
     mainwindow.ui \
    mainprocess.ui \
    showingdata.ui \
    profile3.ui \
    profile.ui

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path += /opt/$${TARGET}/bin $$[QT_INSTALL_PLUGINS]/designer
!isEmpty(target.path): INSTALLS += target

[jsulm]

@MostafaEzzat You should call qmake using whole path to make sure you use the one from the Qt version you're building for.

[MostafaEzzat]

@jsulm

such a weird thing , i didn't know that i should copy libmysql.dll to D:\Qt\5.15.1\mingw81_32\plugins\sqldrivers

i only copied to mingw81_32/bin

now it's working

Got keys from plugin meta data ("QPSQL7", "QPSQL")
QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/Mostafa/Downloads/HospitalSoftware Last Version/build-Hospital-ClinicSoftware-Desktop_Qt_5_15_1_MinGW_32_bit-Debug/debug/sqldrivers" ...
("QSQLITE", "QMARIADB", "QMYSQL", "QMYSQL3", "QODBC", "QODBC3", "QPSQL", "QPSQL7")
loaded library "D:/Qt/5.15.1/mingw81_32/plugins/sqldrivers/qsqlmysql.dll"
Donnne
Connected

Thank you guys i do love this community

[jsulm]

@MostafaEzzat Yes, plug-ins are somewhat special: they are expected to be in a specific location and are loaded at runtime.