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    Solved Deployed app not connecting to mysql on other Macs

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    • J
      JSher last edited by

      Hello,
      I have an app deployed using macdeployqt tool. It works fine on the mac it was created on but when used on another mac, I get the error Driver not loaded.

      I looked in the MyApp.app and ran otool -L on libqsqlmysql.dylib. It looks to be reaching out for libmysqlclient.21.dylib in the /usr/local/mysql-8.0.20-macos10.15-x86_64/lib directory instead of the app?

      It did put the libmysqlclient.21.dylib in the package but in the frameworks directory. It is looking for 2 librarys in the @loader_path directory, libssl.1.1.dylib and libcrypto.1.1.dylib.

      I am not sure if these are the issues as I am a noob on Macs.

      Any help would be appreciated.

      Thanks,
      --James

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      • J
        JSher last edited by

        @JSher said in Deployed app not connecting to mysql on other Macs:

        2

        Scratch that. Those WERE in my mysql directory (thanks @SGaist ).....find could not find them for some reason....added them to the /Frameworks directory and BAM....working.

        Thanks,
        --James

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        • SGaist
          SGaist Lifetime Qt Champion last edited by

          Hi,

          The path should have been corrected to point inside the bundle. You can still do it by hand though.

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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          • J
            JSher last edited by

            @SGaist said in Deployed app not connecting to mysql on other Macs:

            The path should have been corrected to point inside the bundle. You can still do it by hand though.

            How do I do it by hand? Do you have some documentation? And do I need to find those 2 libs and add them as well?

            Thanks,
            --James

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            • J
              JSher last edited by

              @SGaist

              Just for a clear picture, here is otool:

              Ghosts-iMac:sqldrivers ghost$ otool -L libqsqlmysql.dylib

              libqsqlmysql.dylib:

              libqsqlmysql.dylib (compatibility version 0.0.0, current version 0.0.0)

@rpath/QtSql.framework/Versions/5/QtSql (compatibility version 5.9.0, current version 5.9.9)

@rpath/QtCore.framework/Versions/5/QtCore (compatibility version 5.9.0, current version 5.9.9)

/System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration (compatibility version 1.0.0, current version 1.0.0)

/System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0)

/usr/local/mysql-8.0.20-macos10.15-x86_64/lib/libmysqlclient.21.dylib (compatibility version 20.0.0, current version 20.0.0)

/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 400.9.0)

/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.0.0)

              Ghosts-iMac:sqldrivers ghost$ otool -L libmysqlclient.21.dylib

              libmysqlclient.21.dylib:

              @rpath/libmysqlclient.21.dylib (compatibility version 21.0.0, current version 21.0.0)

@loader_path/libssl.1.1.dylib (compatibility version 1.1.0, current version 1.1.0)

@loader_path/libcrypto.1.1.dylib (compatibility version 1.1.0, current version 1.1.0)

/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 800.7.0)

/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1281.0.0)
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              • SGaist
                SGaist Lifetime Qt Champion last edited by

                To do it by hand, use install_name_tool (that's what macdeployqt uses)

                As for the OpenSSL librairies, they are likely provided with your MySQL distribution.

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                • J
                  JSher last edited by

                  @SGaist said in Deployed app not connecting to mysql on other Macs:

                  To do it by hand, use install_name_tool (that's what macdeployqt uses)

                  Thats what I figured but I cannot figure out the commands for install_name_tool and when to use them...

                  I have a couple of questions if you would be so kind:

                  1: It is possible for you to give me an example of install_name_tool line to fix libqsqlmysql.dylib to point to the frameworks directory in the .app instead of /usr/local/mysql-8.0.20-macos10.15-x86_64/lib ?

                  2: When would I execute these commands? Once the .app is built?

                  Thanks a ton,
                  --James

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                  • J
                    JSher last edited by

                    @SGaist What I have done so far, still not working...

                    used install_name_tool -change /usr/ocal/mysql-8.0.20-macos10.15-x86_64/lib/libmysqlclient.21.dylib @executable_path/../Frameworks/libmysqlclient.21.dylib libqsqlmysql.dylib

                    This made libqsqlmysql.dylib point to @executable_path/../Frameworks/libmysqlclient.21.dylib which I am hopeing is the right spot as the .app structure is:
                    contents-Frameworks-libmysqlclient.21.dylib
                    -plugins-sqldrivers-libqsqlmysql.dylib

                    Still does not work. I checked on my system for the libraries libssl.1.1.dylib and libcrypto.1.1.dylib and neither are there so I did not add as they work without.

                    Any ideas where I could check why the driver is not loading?

                    Thanks,
                    --James

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                    • J
                      JSher last edited by

                      @JSher said in Deployed app not connecting to mysql on other Macs:

                      2

                      Scratch that. Those WERE in my mysql directory (thanks @SGaist ).....find could not find them for some reason....added them to the /Frameworks directory and BAM....working.

                      Thanks,
                      --James

                      1 Reply Last reply Reply Quote 0
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