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Forum Update on Monday, May 27th 2025

[SOLVED]MySQL library problem

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mysqldriverpluginsql
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  • S Offline
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    SGaist
    Lifetime Qt Champion
    wrote on 27 Jun 2015, 19:57 last edited by SGaist
    #14

    Then you have to do

    install_name_tool -change /opt/local/lib/mysql55/mysql/libmysqlclient.18.dylib /usr/local/mysql/PATH_TO_libmysqlclient.X.dylib PATH_TO_libqsqlmysql.dylib
    

    In any case, if you are not using it in your application, you can also ignore the message and remove the plugin from the bundle.

    [edit: added missing target SGaist]

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    C 1 Reply Last reply 27 Jun 2015, 20:09
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      cpuin
      wrote on 27 Jun 2015, 20:00 last edited by
      #15

      I deleted all plugins , left only libqsqlite.dylib
      The app doesn't work!

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      • S Offline
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        SGaist
        Lifetime Qt Champion
        wrote on 27 Jun 2015, 20:01 last edited by
        #16

        You have to give more details. "Doesn't work" doesn't give enough information to help you. Do you have any error message ?

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        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

        C 1 Reply Last reply 27 Jun 2015, 20:06
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        • M Offline
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          mcosta
          wrote on 27 Jun 2015, 20:01 last edited by
          #17

          seems that macqtdeploy has some hardcoded PATH for MySQL and PostgreSQL.

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            SGaist
            Lifetime Qt Champion
            wrote on 27 Jun 2015, 20:03 last edited by
            #18

            @mcosta not it doesn't, macdeployqt parses the output of otool to get the dependencies of the libraries/plugins of Qt. AFAICT, the plugins are built with dependencies coming from MacPorts hence the libmysqlclient.18.dylib in /opt/local/lib/

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            • S SGaist
              27 Jun 2015, 20:01

              You have to give more details. "Doesn't work" doesn't give enough information to help you. Do you have any error message ?

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              cpuin
              wrote on 27 Jun 2015, 20:06 last edited by
              #19

              @SGaist said:

              install_name_tool -

              LSOpenURLsWithRole() failed with error -10810 for the file

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              • S SGaist
                27 Jun 2015, 19:57

                Then you have to do

                install_name_tool -change /opt/local/lib/mysql55/mysql/libmysqlclient.18.dylib /usr/local/mysql/PATH_TO_libmysqlclient.X.dylib PATH_TO_libqsqlmysql.dylib
                

                In any case, if you are not using it in your application, you can also ignore the message and remove the plugin from the bundle.

                [edit: added missing target SGaist]

                C Offline
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                cpuin
                wrote on 27 Jun 2015, 20:09 last edited by
                #20

                @SGaist said:

                /opt/local/lib/mysql55/mysql/libmysqlclient.18.dylib

                install_name_tool -change /opt/local/lib/mysql55/mysql/libmysqlclient.18.dylib /usr/local/mysql-5.6.25-osx10.8-x86_64/lib/libmysqlclient.18.dylib
                Usage: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/install_name_tool [-change old new] ... [-rpath old new] ... [-add_rpath new] ... [-delete_rpath old] ... [-id name] input

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                • S Offline
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                  SGaist
                  Lifetime Qt Champion
                  wrote on 27 Jun 2015, 20:25 last edited by
                  #21

                  Which version of OS X and Qt are you using ?

                  I've corrected the example line

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                  C 2 Replies Last reply 27 Jun 2015, 20:31
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                  • S SGaist
                    27 Jun 2015, 20:25

                    Which version of OS X and Qt are you using ?

                    I've corrected the example line

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                    cpuin
                    wrote on 27 Jun 2015, 20:31 last edited by
                    #22

                    @SGaist

                    OS X 10.10.3
                    QT 5.4

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                    • S SGaist
                      27 Jun 2015, 20:25

                      Which version of OS X and Qt are you using ?

                      I've corrected the example line

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                      cpuin
                      wrote on 27 Jun 2015, 20:38 last edited by cpuin
                      #23

                      @SGaist said:

                      PATH_TO_libqsqlmysql.dylib

                      install_name_tool -change /opt/local/lib/mysql55/mysql/libmysqlclient.18.dylib /usr/local/mysql-5.6.25-osx10.8-x86_64/lib/libmysqlclient.18.dylib Users/jorost/Qt5.4.2/5.4/clang_64/plugins/sqldrivers/libqsqlmysql.dylib
                      error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/install_name_tool: can't open file: Users/jorost/Qt5.4.2/5.4/clang_64/plugins/sqldrivers/libqsqlmysql.dylib (No such file or directory)

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                      • S Offline
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                        SGaist
                        Lifetime Qt Champion
                        wrote on 27 Jun 2015, 20:44 last edited by
                        #24

                        You're missing a slash before Users

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                        C 1 Reply Last reply 27 Jun 2015, 20:46
                        0
                        • S SGaist
                          27 Jun 2015, 20:44

                          You're missing a slash before Users

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                          cpuin
                          wrote on 27 Jun 2015, 20:46 last edited by
                          #25

                          @SGaist
                          Now i got only Postgre error

                          ERROR: no file at "/usr/local/lib/libpq.5.dylib"

                          Does it mean that i have working mysql plugin?

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                          • S Offline
                            S Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on 27 Jun 2015, 21:43 last edited by
                            #26

                            You should, unless the libmysqlclient is very different from the one Qt was built with.

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                              cpuin
                              wrote on 28 Jun 2015, 20:55 last edited by
                              #27

                              I have now mysql working, but i still can't have working app because of this:
                              ERROR: no file at "/usr/local/lib/libpq.5.dylib"

                              This is not very good approach: include all plug-ins w/out need of them.

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                              • S Offline
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                                SGaist
                                Lifetime Qt Champion
                                wrote on 28 Jun 2015, 20:58 last edited by
                                #28

                                That's the PostgreSQL plugin. Like I suggested before, just remove the plugins you don't need from your bundle.

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                                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                C 1 Reply Last reply 29 Jun 2015, 08:14
                                0
                                • S SGaist
                                  28 Jun 2015, 20:58

                                  That's the PostgreSQL plugin. Like I suggested before, just remove the plugins you don't need from your bundle.

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                                  cpuin
                                  wrote on 29 Jun 2015, 08:14 last edited by
                                  #29

                                  @SGaist

                                  As i answered before when removing all other plugins from the bundle, the app doesn't open!

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                                  • S Offline
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                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on 30 Jun 2015, 12:52 last edited by
                                    #30

                                    I didn't suggest to remove all other plugins, just the SQL related plugins you don't use

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

                                    C 1 Reply Last reply 30 Jun 2015, 13:03
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                                    • S SGaist
                                      30 Jun 2015, 12:52

                                      I didn't suggest to remove all other plugins, just the SQL related plugins you don't use

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                                      cpuin
                                      wrote on 30 Jun 2015, 13:03 last edited by
                                      #31

                                      @SGaist Exactly, i left only sqlite plugin and the app doesn't open

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                                      • S Offline
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                                        SGaist
                                        Lifetime Qt Champion
                                        wrote on 30 Jun 2015, 13:07 last edited by
                                        #32

                                        Start it from the command line, what does it tell you ?

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                                        Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                                        C 1 Reply Last reply 30 Jun 2015, 13:37
                                        1
                                        • S SGaist
                                          30 Jun 2015, 13:07

                                          Start it from the command line, what does it tell you ?

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                                          cpuin
                                          wrote on 30 Jun 2015, 13:37 last edited by cpuin
                                          #33

                                          @SGaist Strangely the ERROR disappear and working app bundle was created w/out changing anything.Unfortunately the app created database.db in the path i set (in this case in the program.app/contents/MacOS but can't write inside!

                                          Starting the app from QT can write in to the db, but starting it outside Qt doesn't write, but creates it.

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                                          27 Jun 2015, 20:38

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