ASSERT failure in QList<T>::at: "index out of range" in Qt 5 - qt5

Question

I want to generate *.png files from my directory randomly in qt using qrand() function.
to do that I have created a QStringList object so that I can store all files I have in my
directory.thinking that I have some list of files in my QStringList object when I run my application it crush.
I have also warning in my issue pane:> warning: unknown escape sequence: '\D' [enabled by default]
applicationPath = "C:\\Users\\Tekme\Documents\\QtProject\\4Toddler";
^
the reason I add the above warning issues is that, I am on window machine so I am thinking the problem can be path problem
the code is
QString MainWindow::randomIcon()
{
QStringList iconFileList;
QString searchPath = applicationPath + "\\icons";//applicationPath =
QDir directory = QDir(searchPath);
QStringList filters;
filters << "*.png";
directory.setNameFilters(filters);
iconFileList = directory.entryList(QDir::AllEntries);//i have 6 *.png files
int randomIndex = qrand() % iconFileList.count();
return iconFileList.at(randomIndex);//my application crash here
}
Even when I try to replace iconFileList.at(randomIndex) by iconFileList.at(2) it crush.
I am sure I have more than 2 files in my directory

Answer 1

The answer is in the error:
applicationPath = "C:\\Users\\Tekme\Documents\\QtProject\\4Toddler";
Should be
applicationPath = "C:\\Users\\Tekme\\Documents\\QtProject\\4Toddler";
You are missing an extra slash