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  4. JAVA_HOME is not defined correctly.

JAVA_HOME is not defined correctly.

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  • V Offline
    V Offline
    vanpivix
    wrote on 18 Sept 2013, 21:48 last edited by
    #9

    It's set to /etc/java-7-openjdk but there are not a bin folder in it and that's probably why I get

    @Error: JAVA_HOME is not defined correctly.
    We cannot execute /etc/java-7-openjdk/bin/java@

    So is that what I have to change? Change in what?

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    • S Offline
      S Offline
      SGaist
      Lifetime Qt Champion
      wrote on 18 Sept 2013, 21:50 last edited by
      #10

      Change it to point to the folder where you have your java executable installed

      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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      • V Offline
        V Offline
        vanpivix
        wrote on 18 Sept 2013, 22:03 last edited by
        #11

        Now the problem is elsewhere

        @BUILD FAILED
        /home/andrea/Android/adt-bundle-linux-x86_64-20130911/sdk/tools/ant/build.xml:720: The following error occurred while executing this line:
        /home/andrea/Android/adt-bundle-linux-x86_64-20130911/sdk/tools/ant/build.xml:734: Unable to find a javac compiler;
        com.sun.tools.javac.Main is not on the classpath.
        Perhaps JAVA_HOME does not point to the JDK.
        It is currently set to "/usr/lib/jvm/java-6-openjdk-amd64/jre"

        Total time: 1 second
        Packaging Error: Command '/usr/bin/ant clean debug' failed.Exit code: 1
        Error while building/deploying project Test (kit: Android for arm (GCC 4.6, Qt 5.1.1))
        When executing step 'Packaging for Android'
        23:57:23: Elapsed time: 00:03.@

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        • V Offline
          V Offline
          vanpivix
          wrote on 18 Sept 2013, 22:06 last edited by
          #12

          Maybe I should remove and reinstall java and all the components that I need to compile for android...

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          • S Offline
            S Offline
            SGaist
            Lifetime Qt Champion
            wrote on 19 Sept 2013, 11:32 last edited by
            #13

            Where is javac to be found ?

            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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            • P Offline
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              p3c0
              Moderators
              wrote on 19 Sept 2013, 11:52 last edited by
              #14

              Can you post what you get when you fire "which java" command from the terminal ?

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              • V Offline
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                vanpivix
                wrote on 19 Sept 2013, 11:55 last edited by
                #15

                Ok, so:

                @$ which java
                /usr/bin/java
                @

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                • V Offline
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                  vanpivix
                  wrote on 19 Sept 2013, 11:57 last edited by
                  #16

                  If I retry from QtCreator, from Compile Output everything seems ok but I get:

                  Application Output
                  @Starting remote process.Unable to start 'org.qtproject.example.Test'.@

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                  • P Offline
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                    p3c0
                    Moderators
                    wrote on 19 Sept 2013, 12:02 last edited by
                    #17

                    i think you also need to install the jdk.
                    Try @apt-get install openjdk-6-jdk@

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                    • V Offline
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                      vanpivix
                      wrote on 19 Sept 2013, 12:09 last edited by
                      #18

                      Yep it's installed:

                      @sudo apt-get install openjdk-6-jdk
                      [sudo] password for andrea:
                      Lettura elenco dei pacchetti... Fatto
                      Generazione albero delle dipendenze
                      Lettura informazioni sullo stato... Fatto
                      openjdk-6-jdk è già alla versione più recente.
                      0 aggiornati, 0 installati, 0 da rimuovere e 0 non aggiornati.
                      @

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                      • P Offline
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                        p3c0
                        Moderators
                        wrote on 19 Sept 2013, 12:21 last edited by
                        #19

                        Try setting JAVA_HOME to "/usr/lib/jvm/java-6-openjdk-amd64/bin"
                        As it contains both javac and java (symbolic link to ../jre/bin/java )

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                        • V Offline
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                          vanpivix
                          wrote on 19 Sept 2013, 12:52 last edited by
                          #20

                          Ok so I have to add
                          @export JAVA_HOME="/usr/lib/jvm/java-6-openjdk-amd64/bin"@

                          but where? in .profile? .bashrc?
                          Thanks

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                          • P Offline
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                            p3c0
                            Moderators
                            wrote on 19 Sept 2013, 14:23 last edited by
                            #21

                            Yup. try in bashrc or /etc/environment

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                            • V Offline
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                              vanpivix
                              wrote on 19 Sept 2013, 14:35 last edited by
                              #22

                              Done. Now if I run...

                              "Application Output":http://pastebin.com/eqJCfW9p

                              "Compile Output":http://pastebin.com/bGSZmun5

                              I think it's not a Java problem anymore...

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                              • V Offline
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                                vanpivix
                                wrote on 19 Sept 2013, 15:40 last edited by
                                #23

                                I'm not understanding anything.

                                Last update, every time I click on "run" I get

                                Application Output:
                                @Starting remote process.Unable to start 'org.qtproject.example.Test'.@

                                and General Messages
                                @Could not read qmake configuration file /home/andrea/Qt5.1.1/5.1.1/android_armv7/mkspecs/android-g++/qmake.conf.@

                                Maybe this is the problem now, I've never checked this tab before...

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                                • P Offline
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                                  p3c0
                                  Moderators
                                  wrote on 19 Sept 2013, 16:54 last edited by
                                  #24

                                  Well from the compile output it seems that the APK has been created
                                  @/home/andrea/Code/QML/Test/android/bin/Test-debug.apk@
                                  But on deployment to the emulator it crashes due to some OpenGL issues.
                                  I donot have much detailed idea about this.
                                  But just try to deploy this APK on a physical device and see if it works.

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                                  • V Offline
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                                    vanpivix
                                    wrote on 19 Sept 2013, 17:23 last edited by
                                    #25

                                    I tried in a physical device and it works!!!!!!!

                                    But I can't reupload the apk every time to check if it's working well....so maybe I should open a new topic for this issue, what do you think?

                                    Thanks a lot for the help!

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                                      p3c0
                                      Moderators
                                      wrote on 19 Sept 2013, 17:31 last edited by
                                      #26

                                      Yes. You can try asking in new post with appropriate details

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                                      • V Offline
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                                        vanpivix
                                        wrote on 19 Sept 2013, 20:29 last edited by
                                        #27

                                        I've done it, thanks all for the help

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                                          drwho
                                          wrote on 24 May 2014, 20:46 last edited by
                                          #28

                                          I also struggled with the "Buildfile: build.xml does not exist!". It was because I only installed openjdk-7-jre. openjdk-7-jdk is also required.

                                          Qt Creator kept saying "/usr/lib/jvm/java-7-openjdk-i386" was invalid for the JDK location. I guess it looks for something that openjdk-7-jdk puts in the /usr/lib/jvm/java-7-openjdk-i386. After installing openjdk-7-jdk, Qt Creator was happy with the location.

                                          (Using Kubuntu 14.04, JAVA_HOME set in /etc/enviroment)

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