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Mysql can't connect on MacBook



  • QSqlDatabase: QMYSQL driver not loaded
    QSqlDatabase: available drivers: QSQLITE QODBC QODBC3 QPSQL QPSQL7
    I have this error I find solution on forum but that wasn't on MacBook someone know how can I fix this ?

    void MainWindow::on_pushButton_login_clicked()
    {

    QSqlDatabase db = QSqlDatabase::addDatabase("QMYSQL");
    db.setHostName("127.0.0.1");
    db.setUserName("root");
    db.setPassword("aaaaa");
    db.setDatabaseName("QTUSERS");
    
    if(db.open()) {
        QMessageBox::information(this,"Connection", "Database connectet");
    } else {
        QMessageBox::information(this,"Connection", "Database not found");
    }
    

    }

    in pro I have sql..
    I have downloaded mysql community ,..



  • @Eternus
    You have to start by setting environment variable in a shell/terminal and then invoking your application from there, to get diagnostic information. I don't know how exactly you do that on Mac, but from Linux:

    export QT_DEBUG_PLUGINS=1
    path-to-your-executable-to-run-it
    

    Look through the end of the output for what the issue is.



  • how can I go in shell ?



  • @JonB if I install mysql on VPS it will be work???


  • Lifetime Qt Champion

    Hi,

    @Eternus said in Mysql can't connect on MacBook:

    how can I go in shell ?

    Use the Terminal application.



  • @SGaist

    yes i know but what a command ?
    if i put in these 2 line 2 line dont work


  • Lifetime Qt Champion

    What exactly are you writing in your terminal ?



  • @SGaist

    export QT_DEBUG_PLUGINS=1
    path-to-your-executable-to-run-it

    this first reply


  • Lifetime Qt Champion

    @Eternus said in Mysql can't connect on MacBook:

    path-to-your-executable-to-run-it

    You do realize that this is a placeholder text that you have to replace with the actual path to the executable you are trying to run ?

    On the other side, you can also define QT_DEBUG_PLUGINS environment variable in the Run part of the Project panel and start your application as usual.



  • @SGaist

    please can u explain me ? i am beginner and starting with qt and c++ soo i dont know much ..


  • Lifetime Qt Champion

    Explain what ?



  • @SGaist
    how too add qt_debug_plugins...



  • @SGaist I find this https://forum.qt.io/topic/106565/mysql-qt-create-plugin-mysql-for-qt-on-mac

    can't find thes gunzip qt-everywhere-opensource-src-%VERSION%.tar.gz
    I have only this : qt5

    and then I try this https://doc.qt.io/qt-5/macos-building.html
    I can't find thes gunzip qt-everywhere-opensource-src-%VERSION%.tar.gz
    I have only this : qt5


  • Lifetime Qt Champion

    @Eternus said in Mysql can't connect on MacBook:

    @SGaist
    how too add qt_debug_plugins...

    You do realize that is indicated precisely where you should do it in Qt Creator ?



  • @SGaist ??if I install Mysql on vps should be work ?


  • Lifetime Qt Champion

    @Eternus said in Mysql can't connect on MacBook:

    @SGaist ??if I install Mysql on vps should be work ?

    What do you mean ?



  • sorry nothing I mean how can I fix this problem ? I think add qt_debug_plugins... this isn't solution ...


  • Lifetime Qt Champion

    I never said it would be the solution, the goal is to gather information about why the plugin is not loading in order to fix it. And be careful, the name of the variable is all in upper case.



  • @SGaist
    if I start debugging I have same this :
    23:08:46: Debugging starts
    2020-08-21 23:08:51.949814+0200 Test[946:23566] QPixmap::scaled: Pixmap is a null pixmap
    2020-08-21 23:08:53.840401+0200 Test[946:23566] QSqlDatabase: QMYSQL driver not loaded
    2020-08-21 23:08:53.840464+0200 Test[946:23566] QSqlDatabase: available drivers: QSQLITE QODBC QODBC3 QPSQL QPSQL7

    2020-08-21 23:09:50.887121+0200 Test[946:23566] QSqlDatabasePrivate::addDatabase: duplicate connection name 'qt_sql_default_connection', old connection removed.


  • Lifetime Qt Champion

    The application output shows one thing: you are misusing the QSqlDatabase class. It also does not show the plugin loading debug data.

    Did you add the QT_DEBUG_PLUGINS variable in Qt Creator like I suggested ? If so, did you set it to 1 ?



  • @SGaist sorry iam beginner noob where I need add QT_DEBUG PUGINS where ?


  • Lifetime Qt Champion



  • @mrjj thanks <3
    @SGaist

    Screenshot 2020-08-22 at 13.06.15.png
    and this is says me ..

    13:04:44: Starting /Users/macbook/Documents/Projekty_programovanie/QT_APPS/build-Test-Desktop_Qt_5_15_0_clang_64bit-Debug/Test.app/Contents/MacOS/Test ...
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platforms" ...
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platforms/libqcocoa.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platforms/libqcocoa.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "cocoa"
    ]
    },
    "archreq": 0,
    "className": "QCocoaIntegrationPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("cocoa")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platforms/libqminimal.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platforms/libqminimal.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "minimal"
    ]
    },
    "archreq": 0,
    "className": "QMinimalIntegrationPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("minimal")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platforms/libqoffscreen.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platforms/libqoffscreen.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "offscreen"
    ]
    },
    "archreq": 0,
    "className": "QOffscreenIntegrationPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("offscreen")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platforms/libqwebgl.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platforms/libqwebgl.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
    "MetaData": {
    "Keys": [
    "webgl"
    ]
    },
    "archreq": 0,
    "className": "QWebGLIntegrationPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("webgl")
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Projekty_programovanie/QT_APPS/build-Test-Desktop_Qt_5_15_0_clang_64bit-Debug/Test.app/Contents/MacOS/platforms" ...
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platforms/libqcocoa.dylib"
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platformthemes" ...
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platformthemes/libqxdgdesktopportal.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/platformthemes/libqxdgdesktopportal.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QPA.QPlatformThemeFactoryInterface.5.1",
    "MetaData": {
    "Keys": [
    "xdgdesktopportal",
    "flatpak",
    "snap"
    ]
    },
    "archreq": 0,
    "className": "QXdgDesktopPortalThemePlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("xdgdesktopportal", "flatpak", "snap")
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Projekty_programovanie/QT_APPS/build-Test-Desktop_Qt_5_15_0_clang_64bit-Debug/Test.app/Contents/MacOS/platformthemes" ...
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/styles" ...
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/styles/libqmacstyle.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/styles/libqmacstyle.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QStyleFactoryInterface",
    "MetaData": {
    "Keys": [
    "macintosh"
    ]
    },
    "archreq": 0,
    "className": "QMacStylePlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("macintosh")
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Projekty_programovanie/QT_APPS/build-Test-Desktop_Qt_5_15_0_clang_64bit-Debug/Test.app/Contents/MacOS/styles" ...
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/styles/libqmacstyle.dylib"
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats" ...
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqgif.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqgif.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
    "Keys": [
    "gif"
    ],
    "MimeTypes": [
    "image/gif"
    ]
    },
    "archreq": 0,
    "className": "QGifPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("gif")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqicns.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqicns.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
    "Keys": [
    "icns"
    ],
    "MimeTypes": [
    "image/x-icns"
    ]
    },
    "archreq": 0,
    "className": "QICNSPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("icns")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqico.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqico.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
    "Keys": [
    "ico",
    "cur"
    ],
    "MimeTypes": [
    "image/vnd.microsoft.icon",
    "image/vnd.microsoft.icon"
    ]
    },
    "archreq": 0,
    "className": "QICOPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("ico", "cur")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqjpeg.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqjpeg.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
    "Keys": [
    "jpg",
    "jpeg"
    ],
    "MimeTypes": [
    "image/jpeg",
    "image/jpeg"
    ]
    },
    "archreq": 0,
    "className": "QJpegPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("jpg", "jpeg")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqmacheif.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqmacheif.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
    "Keys": [
    "heic",
    "heif"
    ],
    "MimeTypes": [
    "image/heic",
    "image/heif"
    ]
    },
    "archreq": 0,
    "className": "QMacHeifPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("heic", "heif")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqmacjp2.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqmacjp2.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
    "Keys": [
    "jp2"
    ],
    "MimeTypes": [
    "image/jp2",
    "image/jpx",
    "image/jpm",
    "video/mj2"
    ]
    },
    "archreq": 0,
    "className": "QMacJp2Plugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("jp2")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqsvg.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqsvg.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
    "Keys": [
    "svg",
    "svgz"
    ],
    "MimeTypes": [
    "image/svg+xml",
    "image/svg+xml-compressed"
    ]
    },
    "archreq": 0,
    "className": "QSvgPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("svg", "svgz")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqtga.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqtga.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
    "Keys": [
    "tga"
    ],
    "MimeTypes": [
    "image/x-tga"
    ]
    },
    "archreq": 0,
    "className": "QTgaPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("tga")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqtiff.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqtiff.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
    "Keys": [
    "tiff",
    "tif"
    ],
    "MimeTypes": [
    "image/tiff",
    "image/tiff"
    ]
    },
    "archreq": 0,
    "className": "QTiffPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("tiff", "tif")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqwbmp.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqwbmp.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
    "Keys": [
    "wbmp"
    ],
    "MimeTypes": [
    "image/vnd.wap.wbmp"
    ]
    },
    "archreq": 0,
    "className": "QWbmpPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("wbmp")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqwebp.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqwebp.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
    "MetaData": {
    "Keys": [
    "webp"
    ],
    "MimeTypes": [
    "image/webp"
    ]
    },
    "archreq": 0,
    "className": "QWebpPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("webp")
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Projekty_programovanie/QT_APPS/build-Test-Desktop_Qt_5_15_0_clang_64bit-Debug/Test.app/Contents/MacOS/imageformats" ...
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqgif.dylib"
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqicns.dylib"
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqico.dylib"
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqjpeg.dylib"
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqmacheif.dylib"
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqmacjp2.dylib"
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqsvg.dylib"
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqtga.dylib"
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqtiff.dylib"
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqwbmp.dylib"
    loaded library "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/imageformats/libqwebp.dylib"
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/iconengines" ...
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/iconengines/libqsvgicon.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/iconengines/libqsvgicon.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QIconEngineFactoryInterface",
    "MetaData": {
    "Keys": [
    "svg",
    "svgz",
    "svg.gz"
    ]
    },
    "archreq": 0,
    "className": "QSvgIconPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("svg", "svgz", "svg.gz")
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Projekty_programovanie/QT_APPS/build-Test-Desktop_Qt_5_15_0_clang_64bit-Debug/Test.app/Contents/MacOS/iconengines" ...
    QPixmap::scaled: Pixmap is a null pixmap
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/accessible" ...
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Projekty_programovanie/QT_APPS/build-Test-Desktop_Qt_5_15_0_clang_64bit-Debug/Test.app/Contents/MacOS/accessible" ...
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/sqldrivers" ...
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/sqldrivers/libqsqlite.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/sqldrivers/libqsqlite.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
    "Keys": [
    "QSQLITE"
    ]
    },
    "archreq": 0,
    "className": "QSQLiteDriverPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("QSQLITE")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/sqldrivers/libqsqlodbc.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/sqldrivers/libqsqlodbc.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
    "Keys": [
    "QODBC3",
    "QODBC"
    ]
    },
    "archreq": 0,
    "className": "QODBCDriverPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("QODBC3", "QODBC")
    QFactoryLoader::QFactoryLoader() looking at "/Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/sqldrivers/libqsqlpsql.dylib"
    Found metadata in lib /Users/macbook/Documents/Qt/5.15.0/clang_64/plugins/sqldrivers/libqsqlpsql.dylib, metadata=
    {
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
    "Keys": [
    "QPSQL7",
    "QPSQL"
    ]
    },
    "archreq": 0,
    "className": "QPSQLDriverPlugin",
    "debug": false,
    "version": 331520
    }

    Got keys from plugin meta data ("QPSQL7", "QPSQL")
    QFactoryLoader::QFactoryLoader() checking directory path "/Users/macbook/Documents/Projekty_programovanie/QT_APPS/build-Test-Desktop_Qt_5_15_0_clang_64bit-Debug/Test.app/Contents/MacOS/sqldrivers" ...
    QSqlDatabase: QMYSQL driver not loaded
    QSqlDatabase: available drivers: QSQLITE QODBC QODBC3 QPSQL QPSQL7


  • Lifetime Qt Champion

    Due to a change of licence by Oracle, the MySQL prebuilt plugin cannot be provided. You have to build it yourself.



  • @SGaist said in Mysql can't connect on MacBook:

    Due to a change of licence by Oracle, the MySQL prebuilt plugin cannot be provided. You have to build it yourself.

    but how ??? tell me please :(


  • Lifetime Qt Champion

    Did you even try to read the related Qt's documentation ?

    It's explained there.
    There are also numerous thread on this forum about that subject.



  • @SGaist said in Mysql can't connect on MacBook:

    documentation

    i try this : https://forum.qt.io/topic/106565/mysql-qt-create-plugin-mysql-for-qt-on-mac

    Then, we cd to mysql folder (folder inside sqldrivers) and make plugin through 2 commands
    qmake
    make install

    if i qmake and make install i dont have libsqlmysql.dylib in file sqldrivers i dont know why ..Screenshot 2020-08-25 at 11.51.03.png


  • Lifetime Qt Champion

    And what about following the documentation I linked ?

    Are you sure you are using the correct qmake executable ?
    Did you check the qmake output ?
    Did you check the make output ?



  • @SGaist i do this:
    https://doc.qt.io/qt-5/sql-driver.html

    cd $QTDIR/qtbase/src/plugins/sqldrivers -- i need write full path
    qmake -- MYSQL_PREFIX=/usr/local - this working..
    i stopped on this step : make sub-mysql


  • Qt Champions 2019

    @Eternus said in Mysql can't connect on MacBook:

    this working..

    Please remove all generated files (as explained in the documentation) and post the output of this command.



  • @Christian-Ehrlicher said in Mysql can't connect on MacBook:

    working..

    Please remove all generated files (as explained in the documentation) and post the output of this

    how ?? i cant find in documentation


  • Lifetime Qt Champion

    By deleting the files that have been generated in the folder you are in.



  • @SGaist have you mean all in sqldrivers ?


  • Qt Champions 2019

    @Eternus In the build directory, $QTDIR/qtbase/src/plugins/sqldrivers in your case.
    This is now a good example why it is way better to use out of source builds...



  • @jsulm i deleted all files and still have same error
    4eccc605-bee3-4f0d-abb5-1e4a4520fcd5-image.png https://ddgobkiprc33d.cloudfront.net/e229edb5-5f7b-4d09-b351-f42b5aa9c97b.png

    documentation says me delete config i deleted comfig and its same..


  • Lifetime Qt Champion

    Look into config.tests to see what is happening.



  • @SGaist Screenshot 2020-08-28 at 21.37.23.png

    this is config for mysql what there please ?


  • Qt Champions 2019

    @Eternus said in Mysql can't connect on MacBook:

    this is config for mysql what there please ?

    You should take a look at the config.log as described in the documentation



  • @Christian-Ehrlicher
    i cant find in documentation


  • Qt Champions 2019

    @Eternus said in Mysql can't connect on MacBook:

    i cant find in documentation

    "If something goes wrong and you want qmake to recheck your available drivers, you must remove config.cache in <QTDIR>/qtbase/src/plugins/sqldrivers - otherwise qmake will not search for the available drivers again. If you encounter an error during the qmake stage, open config.log to see what went wrong."


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