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Sample program cannot build and run. Why? (Solved)

  • I could not build the sample program( in Qt5.3.1.
    Please kindly advice. Very difficult for a newie to see the error.
    The examples is in /home/common/Qt5.3.1/Examples

    SOURCES = main.cpp
    TRANSLATIONS = hellotr_la.ts

    target.path = /home/common/Qt5.3.1/Examples/Qt-5.3/linguist/hellotr
    INSTALLS += target sources

    QT += widgets
    #simulator: warning(This example might not fully work on Simulator platform)

    #include <QApplication>
    #include <QPushButton>
    #include <QTranslator>

    int main(int argc, char *argv[])

    QApplication app(argc, argv);
    QTranslator translator;

    QPushButton hello(QPushButton::tr("Hello world!"));
    hello.resize(100, 30);;
    return app.exec(&#41;;


    [edit: added missing coding tags @ SGaist]

  • under linguist examples, i cannot set the hello world to thai language

  • i am following the link below

    Do i have to do the translation myself, i thought it is done automatically? linguist/hellotr, initially there is only two file & main.cpp

    2.after running "lupdate -verbose"
    hellotr_la.ts file is created.

    3.after running "linguist hellotr_la.ts"
    hellotr_la.qm file is created.

    =xml format =================================
    <?xml version="1.0" encoding="utf-8"?>
    <TS version="2.0" language="th_TH" sourcelanguage="en_SG">
    <location filename="main.cpp" line="63"/>
    <source>Hello world!</source>
    <translatorcomment>Orbis, te saluto !</translatorcomment>
    <translation>Orbis, te Saluto!</translation>

  • i build and run successfully, but it is always same language "hello world"

  • Lifetime Qt Champion


    @translator.load(“hellotr_la”); << Used like that it searches for the file in the application path@

    Do you have the translation file in the same folder as your application ?

  • I don't have the translation file. Where to get it? do you have the link?

    i am following the link below

    did i miss anything?

  • there are 13 label that i would like to toggle between thai language and english. I will be using QxmlStreamReader to read both language.

  • Lifetime Qt Champion

    There's no need to add QxmlStreamReader for this.

    You have generated the hellotr_la.qm file. Probably in your source folder. So you have two solutions here:

    Copy that file in the build directory, in the same folder as your application

    Give the full path to that file to QTranslator

  • Can guide on how to toggle between thai and english language using a timer on Mainwindow? Many thanks

  • I managed to toggle between two language. Now my concern is how to plug English and thai from a txt file.
    In these txt file, there is a translation list. (English & Thai)

    QString line;

    do {
    line =stream.readLine();


    Attach is the youtube on how translation can be done in Qt

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