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Forum Update on Monday, May 27th 2025

[SOLVED]MySQL library problem

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mysqldriverpluginsql
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  • C Offline
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    cpuin
    wrote on 27 Jun 2015, 19:40 last edited by cpuin
    #9

    Doesn't work after the deployment!!!

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      SGaist
      Lifetime Qt Champion
      wrote on 27 Jun 2015, 19:47 last edited by
      #10

      Hi,

      Do you have the MySQL libraries installed in /opt ? (i.e. using macports) If not then the error message is normal.

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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, 19:50
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      • S SGaist
        27 Jun 2015, 19:47

        Hi,

        Do you have the MySQL libraries installed in /opt ? (i.e. using macports) If not then the error message is normal.

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        cpuin
        wrote on 27 Jun 2015, 19:50 last edited by
        #11

        @SGaist

        I have installed MySQL from the installer.I don't know where is the opt/ (the path to it)

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        • S Offline
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          SGaist
          Lifetime Qt Champion
          wrote on 27 Jun 2015, 19:53 last edited by
          #12

          Then you probably have the MySQL libraries in a path like /usr/local/mysql/. Right ?

          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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            cpuin
            wrote on 27 Jun 2015, 19:53 last edited by
            #13

            YES it is there

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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]

              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 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 ?

                  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 27 Jun 2015, 20:06
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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]

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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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                            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

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

                            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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                                  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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                                  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, 20:46
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                                  • 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
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                                      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.

                                      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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                                        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.

                                          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 29 Jun 2015, 08:14
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