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QSqlDatabase: QMYSQL driver not loaded

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  • jsulmJ jsulm

    @SPlatten said in QSqlDatabase: QMYSQL driver not loaded:

    What do I need to do in order for it to find the QMYSQL driver?

    Search in the forum - this is asked again and again and again.
    Set QT_DEBUG_PLUGINS before starting your app and check output (https://doc.qt.io/qt-5/debug.html).

    SPlattenS Offline
    SPlattenS Offline
    SPlatten
    wrote on last edited by SPlatten
    #9

    @jsulm , I now see:

    Cannot load library C:\Users\simon.platten\Documents\install\sqldrivers\qsqlmysql.dll: The specified module could not be found.
    

    How do I get the deployment tool to add the mysql connector/c 6.1 if that is whats required?

    Kind Regards,
    Sy

    jsulmJ 1 Reply Last reply
    0
    • SPlattenS SPlatten

      @jsulm , I now see:

      Cannot load library C:\Users\simon.platten\Documents\install\sqldrivers\qsqlmysql.dll: The specified module could not be found.
      

      How do I get the deployment tool to add the mysql connector/c 6.1 if that is whats required?

      jsulmJ Online
      jsulmJ Online
      jsulm
      Lifetime Qt Champion
      wrote on last edited by jsulm
      #10

      @SPlatten said in QSqlDatabase: QMYSQL driver not loaded:

      I now see

      Is there something above this error? Usually the problem is not qsqlmysql.dll but missing MySQL client library which is used by qsqlmysql.dll. Please post the whole output.

      https://forum.qt.io/topic/113070/qt-code-of-conduct

      SPlattenS 1 Reply Last reply
      0
      • jsulmJ jsulm

        @SPlatten said in QSqlDatabase: QMYSQL driver not loaded:

        I now see

        Is there something above this error? Usually the problem is not qsqlmysql.dll but missing MySQL client library which is used by qsqlmysql.dll. Please post the whole output.

        SPlattenS Offline
        SPlattenS Offline
        SPlatten
        wrote on last edited by
        #11

        @jsulm , thank you, here is the full output:

        QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/platforms" ...
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/platforms/qwindows.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/platforms/qwindows.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
            "MetaData": {
                "Keys": [
                    "windows"
                ]
            },
            "className": "QWindowsIntegrationPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("windows")
        loaded library "C:/Users/simon.platten/Documents/install/platforms/qwindows.dll"
        QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/platformthemes" ...
        QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/styles" ...
        Chelton - Training Server
        QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/imageformats" ...
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qgif.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qgif.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
            "MetaData": {
                "Keys": [
                    "gif"
                ],
                "MimeTypes": [
                   "image/gif"
                ]
            },
            "className": "QGifPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("gif")
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qicns.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qicns.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
            "MetaData": {
                "Keys": [
                    "icns"
                ],
                "MimeTypes": [
                    "image/x-icns"
                ]
            },
            "className": "QICNSPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("icns")
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qico.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qico.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
            "MetaData": {
                "Keys": [
                    "ico",
                    "cur"
                ],
                "MimeTypes": [
                    "image/vnd.microsoft.icon"
                ]
            },
            "className": "QICOPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("ico", "cur")
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qjpeg.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qjpeg.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
            "MetaData": {
                "Keys": [
                    "jpg",
                    "jpeg"
                ],
                "MimeTypes": [
                    "image/jpeg",
                    "image/jpeg"
                ]
            },
            "className": "QJpegPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("jpg", "jpeg")
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qsvg.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qsvg.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
            "MetaData": {
                "Keys": [
                    "svg",
                    "svgz"
                ],
                "MimeTypes": [
                    "image/svg+xml",
                    "image/svg+xml-compressed"
                ]
            },
            "className": "QSvgPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("svg", "svgz")
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qtga.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qtga.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
            "MetaData": {
                "Keys": [
                    "tga"
                ],
                "MimeTypes": [
                    "image/x-tga"
                ]
            },
            "className": "QTgaPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("tga")
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qtiff.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qtiff.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
            "MetaData": {
                "Keys": [
                    "tiff",
                    "tif"
                ],
                "MimeTypes": [
                    "image/tiff",
                    "image/tiff"
                ]
            },
            "className": "QTiffPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("tiff", "tif")
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qwbmp.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qwbmp.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
            "MetaData": {
                "Keys": [
                    "wbmp"
                ],
                "MimeTypes": [
                    "image/vnd.wap.wbmp"
                ]
            },
            "className": "QWbmpPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("wbmp")
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qwebp.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qwebp.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
            "MetaData": {
                "Keys": [
                    "webp"
                ],
                "MimeTypes": [
                    "image/webp"
                ]
            },
            "className": "QWebpPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("webp")
        loaded library "C:/Users/simon.platten/Documents/install/imageformats/qgif.dll"
        loaded library "C:/Users/simon.platten/Documents/install/imageformats/qicns.dll"
        loaded library "C:/Users/simon.platten/Documents/install/imageformats/qico.dll"
        loaded library "C:/Users/simon.platten/Documents/install/imageformats/qjpeg.dll"
        loaded library "C:/Users/simon.platten/Documents/install/imageformats/qsvg.dll"
        loaded library "C:/Users/simon.platten/Documents/install/imageformats/qtga.dll"
        loaded library "C:/Users/simon.platten/Documents/install/imageformats/qtiff.dll"
        loaded library "C:/Users/simon.platten/Documents/install/imageformats/qwbmp.dll"
        loaded library "C:/Users/simon.platten/Documents/install/imageformats/qwebp.dll"
        QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/accessible" ...
        QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/sqldrivers" ...
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/sqldrivers/qsqlite.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/sqldrivers/qsqlite.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
            "MetaData": {
                "Keys": [
                    "QSQLITE"
                ]
            },
            "className": "QSQLiteDriverPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("QSQLITE")
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/sqldrivers/qsqlmysql.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/sqldrivers/qsqlmysql.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
            "MetaData": {
                "Keys": [
                    "QMYSQL3",
                    "QMYSQL"
                ]
            },
            "className": "QMYSQLDriverPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("QMYSQL3", "QMYSQL")
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/sqldrivers/qsqlodbc.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/sqldrivers/qsqlodbc.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
            "MetaData": {
                "Keys": [
                    "QODBC3",
                    "QODBC"
                ]
            },
            "className": "QODBCDriverPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("QODBC3", "QODBC")
        QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/sqldrivers/qsqlpsql.dll"
        Found metadata in lib C:/Users/simon.platten/Documents/install/sqldrivers/qsqlpsql.dll, metadata=
        {
            "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
            "MetaData": {
                "Keys": [
                    "QPSQL7",
                    "QPSQL"
                ]
            },
            "className": "QPSQLDriverPlugin",
            "debug": false,
            "version": 329986
        }
         
         
        Got keys from plugin meta data ("QPSQL7", "QPSQL")
        Cannot load library C:\Users\simon.platten\Documents\install\sqldrivers\qsqlmysql.dll: The specified module could not be found.
        QLibraryPrivate::loadPlugin failed on "C:/Users/simon.platten/Documents/install/sqldrivers/qsqlmysql.dll" : "Cannot load library C:\\Users\\simon.platten\\Documents\\install\\sqldrivers\\qsqlmysql.dll: The specified module could not be found."
        QSqlDatabase: QMYSQL driver not loaded
        QSqlDatabase: available drivers: QSQLITE QMYSQL QMYSQL3 QODBC QODBC3 QPSQL QPSQL7
        QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/accessiblebridge" ...
        QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qgif.dll"
        QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qicns.dll"
        QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qico.dll"
        QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qjpeg.dll"
        QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qsvg.dll"
        QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qtga.dll"
        QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qtiff.dll"
        QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qwbmp.dll"
        QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qwebp.dll"
        QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/platforms/qwindows.dll"
        

        Kind Regards,
        Sy

        jsulmJ 1 Reply Last reply
        0
        • SPlattenS SPlatten

          @jsulm , thank you, here is the full output:

          QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/platforms" ...
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/platforms/qwindows.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/platforms/qwindows.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QPA.QPlatformIntegrationFactoryInterface.5.3",
              "MetaData": {
                  "Keys": [
                      "windows"
                  ]
              },
              "className": "QWindowsIntegrationPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("windows")
          loaded library "C:/Users/simon.platten/Documents/install/platforms/qwindows.dll"
          QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/platformthemes" ...
          QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/styles" ...
          Chelton - Training Server
          QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/imageformats" ...
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qgif.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qgif.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "gif"
                  ],
                  "MimeTypes": [
                     "image/gif"
                  ]
              },
              "className": "QGifPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("gif")
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qicns.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qicns.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "icns"
                  ],
                  "MimeTypes": [
                      "image/x-icns"
                  ]
              },
              "className": "QICNSPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("icns")
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qico.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qico.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "ico",
                      "cur"
                  ],
                  "MimeTypes": [
                      "image/vnd.microsoft.icon"
                  ]
              },
              "className": "QICOPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("ico", "cur")
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qjpeg.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qjpeg.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "jpg",
                      "jpeg"
                  ],
                  "MimeTypes": [
                      "image/jpeg",
                      "image/jpeg"
                  ]
              },
              "className": "QJpegPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("jpg", "jpeg")
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qsvg.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qsvg.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "svg",
                      "svgz"
                  ],
                  "MimeTypes": [
                      "image/svg+xml",
                      "image/svg+xml-compressed"
                  ]
              },
              "className": "QSvgPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("svg", "svgz")
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qtga.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qtga.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "tga"
                  ],
                  "MimeTypes": [
                      "image/x-tga"
                  ]
              },
              "className": "QTgaPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("tga")
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qtiff.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qtiff.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "tiff",
                      "tif"
                  ],
                  "MimeTypes": [
                      "image/tiff",
                      "image/tiff"
                  ]
              },
              "className": "QTiffPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("tiff", "tif")
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qwbmp.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qwbmp.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "wbmp"
                  ],
                  "MimeTypes": [
                      "image/vnd.wap.wbmp"
                  ]
              },
              "className": "QWbmpPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("wbmp")
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/imageformats/qwebp.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/imageformats/qwebp.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QImageIOHandlerFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "webp"
                  ],
                  "MimeTypes": [
                      "image/webp"
                  ]
              },
              "className": "QWebpPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("webp")
          loaded library "C:/Users/simon.platten/Documents/install/imageformats/qgif.dll"
          loaded library "C:/Users/simon.platten/Documents/install/imageformats/qicns.dll"
          loaded library "C:/Users/simon.platten/Documents/install/imageformats/qico.dll"
          loaded library "C:/Users/simon.platten/Documents/install/imageformats/qjpeg.dll"
          loaded library "C:/Users/simon.platten/Documents/install/imageformats/qsvg.dll"
          loaded library "C:/Users/simon.platten/Documents/install/imageformats/qtga.dll"
          loaded library "C:/Users/simon.platten/Documents/install/imageformats/qtiff.dll"
          loaded library "C:/Users/simon.platten/Documents/install/imageformats/qwbmp.dll"
          loaded library "C:/Users/simon.platten/Documents/install/imageformats/qwebp.dll"
          QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/accessible" ...
          QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/sqldrivers" ...
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/sqldrivers/qsqlite.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/sqldrivers/qsqlite.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "QSQLITE"
                  ]
              },
              "className": "QSQLiteDriverPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("QSQLITE")
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/sqldrivers/qsqlmysql.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/sqldrivers/qsqlmysql.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "QMYSQL3",
                      "QMYSQL"
                  ]
              },
              "className": "QMYSQLDriverPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("QMYSQL3", "QMYSQL")
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/sqldrivers/qsqlodbc.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/sqldrivers/qsqlodbc.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "QODBC3",
                      "QODBC"
                  ]
              },
              "className": "QODBCDriverPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("QODBC3", "QODBC")
          QFactoryLoader::QFactoryLoader() looking at "C:/Users/simon.platten/Documents/install/sqldrivers/qsqlpsql.dll"
          Found metadata in lib C:/Users/simon.platten/Documents/install/sqldrivers/qsqlpsql.dll, metadata=
          {
              "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
              "MetaData": {
                  "Keys": [
                      "QPSQL7",
                      "QPSQL"
                  ]
              },
              "className": "QPSQLDriverPlugin",
              "debug": false,
              "version": 329986
          }
           
           
          Got keys from plugin meta data ("QPSQL7", "QPSQL")
          Cannot load library C:\Users\simon.platten\Documents\install\sqldrivers\qsqlmysql.dll: The specified module could not be found.
          QLibraryPrivate::loadPlugin failed on "C:/Users/simon.platten/Documents/install/sqldrivers/qsqlmysql.dll" : "Cannot load library C:\\Users\\simon.platten\\Documents\\install\\sqldrivers\\qsqlmysql.dll: The specified module could not be found."
          QSqlDatabase: QMYSQL driver not loaded
          QSqlDatabase: available drivers: QSQLITE QMYSQL QMYSQL3 QODBC QODBC3 QPSQL QPSQL7
          QFactoryLoader::QFactoryLoader() checking directory path "C:/Users/simon.platten/Documents/install/accessiblebridge" ...
          QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qgif.dll"
          QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qicns.dll"
          QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qico.dll"
          QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qjpeg.dll"
          QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qsvg.dll"
          QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qtga.dll"
          QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qtiff.dll"
          QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qwbmp.dll"
          QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/imageformats/qwebp.dll"
          QLibraryPrivate::unload succeeded on "C:/Users/simon.platten/Documents/install/platforms/qwindows.dll"
          
          jsulmJ Online
          jsulmJ Online
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #12

          @SPlatten said in QSqlDatabase: QMYSQL driver not loaded:

          C:\Users\simon.platten\Documents\install\sqldrivers\qsqlmysql.dll

          Does it exist?

          https://forum.qt.io/topic/113070/qt-code-of-conduct

          SPlattenS 1 Reply Last reply
          0
          • SPlattenS SPlatten

            @KroMignon, how?

            KroMignonK Offline
            KroMignonK Offline
            KroMignon
            wrote on last edited by KroMignon
            #13

            @SPlatten said in QSqlDatabase: QMYSQL driver not loaded:

            how?

            is libmysql.dll (which is the mysql connector/c DLL) available in your installation?

            It is an old maxim of mine that when you have excluded the impossible, whatever remains, however improbable, must be the truth. (Sherlock Holmes)

            SPlattenS 1 Reply Last reply
            0
            • jsulmJ jsulm

              @SPlatten said in QSqlDatabase: QMYSQL driver not loaded:

              C:\Users\simon.platten\Documents\install\sqldrivers\qsqlmysql.dll

              Does it exist?

              SPlattenS Offline
              SPlattenS Offline
              SPlatten
              wrote on last edited by
              #14

              @jsulm , yes, it's 100% there.

              Kind Regards,
              Sy

              jsulmJ 1 Reply Last reply
              0
              • SPlattenS SPlatten

                @jsulm , yes, it's 100% there.

                jsulmJ Online
                jsulmJ Online
                jsulm
                Lifetime Qt Champion
                wrote on last edited by
                #15

                @SPlatten Then probably libmysql.dll is missing

                https://forum.qt.io/topic/113070/qt-code-of-conduct

                1 Reply Last reply
                0
                • KroMignonK KroMignon

                  @SPlatten said in QSqlDatabase: QMYSQL driver not loaded:

                  how?

                  is libmysql.dll (which is the mysql connector/c DLL) available in your installation?

                  SPlattenS Offline
                  SPlattenS Offline
                  SPlatten
                  wrote on last edited by SPlatten
                  #16

                  @KroMignon I don't see it, but how on the same system does it work in Qt Creator?

                  I found libmariadb.dll in **C:\Program Files (x86)\MariaDB 10.5\lib\**, should I copy that to the install folder?

                  Just tried that, still same problem.

                  Kind Regards,
                  Sy

                  jsulmJ KroMignonK 3 Replies Last reply
                  0
                  • SPlattenS SPlatten

                    @KroMignon I don't see it, but how on the same system does it work in Qt Creator?

                    I found libmariadb.dll in **C:\Program Files (x86)\MariaDB 10.5\lib\**, should I copy that to the install folder?

                    Just tried that, still same problem.

                    jsulmJ Online
                    jsulmJ Online
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by
                    #17

                    @SPlatten said in QSqlDatabase: QMYSQL driver not loaded:

                    but how on the same system does it work in Qt Creator?

                    QtCreator prepares the environment before it starts your app.

                    https://forum.qt.io/topic/113070/qt-code-of-conduct

                    SPlattenS 1 Reply Last reply
                    0
                    • jsulmJ jsulm

                      @SPlatten said in QSqlDatabase: QMYSQL driver not loaded:

                      but how on the same system does it work in Qt Creator?

                      QtCreator prepares the environment before it starts your app.

                      SPlattenS Offline
                      SPlattenS Offline
                      SPlatten
                      wrote on last edited by SPlatten
                      #18

                      @jsulm , please see edited reply to @KroMignon...

                      Now its working, found libmysql.dll in C:\Program Files (x86)\MySQL\MySQL Connector C 6.1\lib copied to install folder, now it works!

                      Thank you for your help!

                      Kind Regards,
                      Sy

                      1 Reply Last reply
                      0
                      • SPlattenS SPlatten

                        @KroMignon I don't see it, but how on the same system does it work in Qt Creator?

                        I found libmariadb.dll in **C:\Program Files (x86)\MariaDB 10.5\lib\**, should I copy that to the install folder?

                        Just tried that, still same problem.

                        jsulmJ Online
                        jsulmJ Online
                        jsulm
                        Lifetime Qt Champion
                        wrote on last edited by
                        #19

                        @SPlatten said in QSqlDatabase: QMYSQL driver not loaded:

                        should I copy that to the install folder?

                        Put it next to qsqlmysql.dll (in C:\Users\simon.platten\Documents\install\sqldrivers)

                        https://forum.qt.io/topic/113070/qt-code-of-conduct

                        1 Reply Last reply
                        0
                        • SPlattenS SPlatten

                          @KroMignon I don't see it, but how on the same system does it work in Qt Creator?

                          I found libmariadb.dll in **C:\Program Files (x86)\MariaDB 10.5\lib\**, should I copy that to the install folder?

                          Just tried that, still same problem.

                          KroMignonK Offline
                          KroMignonK Offline
                          KroMignon
                          wrote on last edited by
                          #20

                          @SPlatten said in QSqlDatabase: QMYSQL driver not loaded:

                          I don't see it, but how on the same system does it work in Qt Creator? I found libmariadb.dll in **C:\Program Files (x86)\MariaDB 10.5\lib**, should I copy that to the install folder?

                          Perhaps the easiest way would be to use dependency walker to see which DLL are required for your mysql plugin sqldrivers/qsqlmysql.dll

                          I don't know how you have build the plugin.
                          You could try to copy the DLL into the plugin path, so it will be reachable. But be sure it is the right one!

                          It is an old maxim of mine that when you have excluded the impossible, whatever remains, however improbable, must be the truth. (Sherlock Holmes)

                          1 Reply Last reply
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