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Thread: Application crashing

  1. #1
    Join Date
    May 2009
    Posts
    129

    Default Application crashing

    Hi

    i am using Twitter api in my application..

    I used only login api ...

    My project is complied succesfully ...

    When i am running , my application is crashed...


    please help me

    see my code..

    Example.cpp

    Qt Code:
    1. #include <QtGui>
    2. #include "login.h"
    3. #include "ui_login.h"
    4. #include <QDebug>
    5. Login::Login(QWidget *parent)
    6. : QWidget(parent), ui(new Ui::LoginClass)
    7. {
    8. ui->setupUi(this);
    9. ui->pushButton->setText("Login");
    10. m_twitLib = new QTwitLib();
    11. }
    12.  
    13. Login::~Login()
    14. {
    15. delete ui;
    16. }
    17.  
    18. void Login::on_pushButton_clicked()
    19. {
    20. m_twitLib->Login(ui->lineEdit->text(),ui->lineEdit_2->text());
    21. qDebug() << "ghuirgdfhngjesbfxcbnvfds";
    22. }
    23. void Login::OnError(QString error)
    24. {
    25. ui->textEdit->append("ERROR "+error);
    26. } //=====================================================================
    27. void Login::OnMessageReceived(QString message)
    28. {
    29. ui->textEdit->append("MESSAGE "+message);
    30. } //=====================================================================
    31. void Login::OnStatusReceived(SERVER::RESP response)
    32. {
    33. ui->textEdit->append("STATUS REC "+QString::number(response));
    34. }
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    .

    Example.h
    Qt Code:
    1. #ifndef LOGIN_H
    2. #define LOGIN_H
    3. #include "QTwitLib.h"
    4.  
    5. #include <QtGui/QWidget>
    6.  
    7. namespace Ui
    8. {
    9. class LoginClass;
    10. }
    11.  
    12. class Login : public QWidget
    13. {
    14. Q_OBJECT
    15.  
    16. public:
    17. Login(QWidget *parent = 0);
    18. ~Login();
    19. void OnError(QString error);
    20. void OnMessageReceived(QString message);
    21. void OnStatusReceived(SERVER::RESP response);
    22. //void OnResponseReceived(Returnables::Response *);
    23.  
    24. private:
    25. //void MakeConnections();
    26. //void DisplayList(QLinkedList<Returnables::StatusElement*> list, QString header);
    27.  
    28. Ui::LoginClass *ui;
    29. QTwitLib *m_twitLib;
    30.  
    31. private slots:
    32. void on_pushButton_clicked();
    33. };
    34.  
    35. #endif // LOGIN_H
    36.  
    37. Here
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    if i comment the m_twitLib ->Login ,it is showing ...otherwise it is not showing...

    if you need full code... i will post it


    please help me
    Thanks

  2. #2
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    Default Re: Application crashing

    Please post a backtrace from the debugger.
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


  3. #3
    Join Date
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    129

    Default Re: Application crashing

    Hi

    i have included my debug details.... it showing login.ui is unfound...
    Attached Files Attached Files

  4. #4
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    Default Re: Application crashing

    it's compiler output and has nothing to do with debug backtrace. Just use debugger and you will see where the crash appeared.
    I would like to be a "Guru"

    Useful hints (try them before asking):
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    2. Search the forum

    If you haven't found solution yet then create new topic with smart question.

  5. #5
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    Default Re: Application crashing

    Hi

    Already i haven so many debugger statements...

    complier is not entering even main .cpp ..



    How do solve thisa issue...


    Please help me

    Thanks

  6. #6
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    Default Re: Application crashing

    attach compilable example.
    Qt Assistant -- rocks!
    please, use tags [CODE] & [/CODE].

  7. #7
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    Default Re: Application crashing

    Quote Originally Posted by addu View Post
    Hi

    Already i haven so many debugger statements...

    complier is not entering even main .cpp ..



    How do solve thisa issue...


    Please help me

    Thanks
    So it crashes or it doesn't compile? And do you know the difference between debugger and compiler?
    I would like to be a "Guru"

    Useful hints (try them before asking):
    1. Use Qt Assistant
    2. Search the forum

    If you haven't found solution yet then create new topic with smart question.

  8. #8
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    Default Re: Application crashing

    No, please tell me the difference...

  9. #9
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    Default Re: Application crashing

    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.


  10. #10
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    Default Re: Application crashing

    Quote Originally Posted by addu View Post
    No, please tell me the difference...
    No, please use www.google.com to get required knowledge to write, debug and deploy an application in C++.
    I would like to be a "Guru"

    Useful hints (try them before asking):
    1. Use Qt Assistant
    2. Search the forum

    If you haven't found solution yet then create new topic with smart question.

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