Getting error: ‘unavailable synchroneous data’ in Qt Creator during debugging

[ahmadka]

Hey guys, I'm getting this strange error in Qt while debugging .. Here's whats happening: I am debugging inside this function/method which is part of a class named Canvas. Now within this function, I should be able to access all of this class's variables, etc .. since the access request is coming from within the same class. However, when I'm halted at a specific line within this function and I look at the Local Watch, I see all the variables of this class object listed, however next to all of them it says: 'unavailable synchroneous data' (spelled exactly like this). When I try to access any such variable within this function, the program crashes ... Can someone tell me what is happening here ?

[tbscope]

Can you post your code?

[krzysiek2805]

I have the same problem as ahmadka. When I try to access any such variable "aktualnyGracz" or another variable within this function, the program crashes.
In the constructor variables are displayed good.
This is my code:

server.h


class Server : public QObject
{
Q_OBJECT
public:
...
Table *zwrocTable()
{ return table; }
QList<Gracz *> listaGracz;
qint16 naszIndex;
...

public slots:
...
void startGame();
...

private:
QWidget *parentWindow;
Table *table;

};


server.cpp


void Server::startGame()
{
table = new Table(parentWindow, listaGracz, naszIndex);
connect(table, SIGNAL(closeTable()), this, SLOT(closeServer()), Qt::DirectConnection);
connect(table, SIGNAL(podbij(quint16)), this, SLOT(podbij(quint16)), Qt::DirectConnection);
connect(table, SIGNAL(spasuj()), this, SLOT(spasuj()));
table->ustawGracza(0);
}


table.h


class Table : public QMainWindow, public Ui::TableWindow
{
Q_OBJECT
public:
Table(QWidget *parent, QList<Gracz *> &l, qint16 &n);
void ustawGracza(qint16 index);

private:
...
qint16 naszIndex;
QList<Gracz *> listaWskaz;
};


table.cpp


Table::Table(QWidget *parent, QList<Gracz *> &l, qint16 &n) :
QMainWindow(parent), listaWskaz(l), naszIndex(n)
{}

void Table::ustawGracza(qint16 index)
{

qDebug() << "something " << index;
qDebug() << aktualnyGracz;
uaktualnij();
}


Can you help me?

[ChrisW67]

I have the same problem as ahmadka. When I try to access any such variable "aktualnyGracz" or another variable within this function, the program crashes.

This might be of interest:
http://stackoverflow.com/questions/5380663/upgrading-gdb-for-use-in-qt-creator

[poporacer]

I don't see anywhere in your code where you declare or define aktualnyGracz