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JAVA_HOME is not defined correctly.

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  • SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #2

    Hi and welcome to devnet,

    Disclaimer: I'm not yet proficient in Qt Android build

    Did you check the value of JAVA_HOME in your Build Settings ?

    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 last edited by
      #3

      Thanks :)
      I search around and I try to execute ant form terminal and then I read that my JAVA_HOME was not set.

      So I installed JDK with
      @sudo apt-get install openjdk-6-jre@

      then I set
      @export JAVA_HOME="/usr/lib/jvm/java-6-openjdk-amd64;"@

      and now I have an ant problem:
      @ant
      Buildfile: build.xml does not exist!
      Build failed@

      and when I try from Qt-Creator to run my project I get
      @Error while building/deploying project Test (kit: Android for arm (GCC 4.6, Qt 5.1.1))
      When executing step 'Deploy to Android device'@

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      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #4

        You should not have a semi-colon in your JAVA_HOME path.

        Did you set it globally ? i.g. in your .profile file ?

        If not, it won't be available to program run outside the console where you set it.

        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 last edited by
          #5

          I'm sorry, what and where I have to write....

          I hate java but I used it for 4 months for university in an other ubuntu installation without any of these problems...

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #6

            Since you just installed it, you could try to just logout/login to check wether your environment has been properly updated.

            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 last edited by
              #7

              I removed java 6, reinstalled java 7 and then logout/login

              I retry and I get
              @23:26:32: The process "/usr/bin/make" exited normally.
              23:26:32: Copy Qt app & libs to Android package ...
              23:26:33: Creating package file ...
              23:26:33: Package deploy: Running command '/usr/bin/ant clean debug'.
              Error: JAVA_HOME is not defined correctly.
              We cannot execute /etc/java-7-openjdk/bin/java
              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'@

              So I have to set JAVA_HOME.
              Now, I have to add:

              @export JAVA_HOME=/usr/lib/jvm/SOMETHING@

              But something what? I post the content of /usr/lib/Jvm
              @default-java java-1.7.0-openjdk-amd64 java-6-openjdk-common
              java-1.6.0-openjdk java-6-openjdk java-7-openjdk-amd64
              java-1.6.0-openjdk-amd64 java-6-openjdk-amd64 java-7-openjdk-common
              @

              and then, I have to add the line in which file? .bashrc? .profile?

              Thank you for the help....

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #8

                Did you check the JDK location in Options -> Android from QtCreator ?

                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 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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                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on 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 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 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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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on 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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                          • p3c0P Offline
                            p3c0P Offline
                            p3c0
                            Moderators
                            wrote on last edited by
                            #14

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

                            157

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                            • V Offline
                              V Offline
                              vanpivix
                              wrote on last edited by
                              #15

                              Ok, so:

                              @$ which java
                              /usr/bin/java
                              @

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                              • V Offline
                                V Offline
                                vanpivix
                                wrote on 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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                                • p3c0P Offline
                                  p3c0P Offline
                                  p3c0
                                  Moderators
                                  wrote on last edited by
                                  #17

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

                                  157

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                                  • V Offline
                                    V Offline
                                    vanpivix
                                    wrote on 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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                                    • p3c0P Offline
                                      p3c0P Offline
                                      p3c0
                                      Moderators
                                      wrote on 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 )

                                      157

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                                      • V Offline
                                        V Offline
                                        vanpivix
                                        wrote on 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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                                        • p3c0P Offline
                                          p3c0P Offline
                                          p3c0
                                          Moderators
                                          wrote on last edited by
                                          #21

                                          Yup. try in bashrc or /etc/environment

                                          157

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