Cannot open resource file

Question

Here is my code:

QFile test("://needle.png"); // also tried :/needle.png :\needle.png :\\needle.png

if(test.open(QFile::ReadOnly)) {
    qDebug() << "yay";
} else {
    qDebug() << "fail";
}

I have this in my project file:

RESOURCES += Resources.qrc

Here is my QRC file:

<RCC>
    <qresource prefix="/">
        <file>needle.png</file>
    </qresource>
</RCC>

I keep getting fail as output. Any ideas?

score 11 · Answer 1 · answered Dec 19 '13 at 18:46

11

I had exactly the same problem. Running qmake again finally worked (build -> run qmake).

answered Dec 19 '13 at 18:46

Milania

565
7
15

I can't believe it, wasted so much time when all I needed to do was run qmake. thank you! – Mark Ch Jan 19 '18 at 08:07

score 9 · Accepted Answer · answered Apr 13 '13 at 16:03

9

Does the URL notation

QFile test("qrc:///needle.png");

work for you?

answered Apr 13 '13 at 16:03

Burkhard

169
1
3

1

Turns out the project was corrupted. – user2277695 Apr 13 '13 at 16:34
I just tried out your code and it worked fine for me. Of course, I used `QFile test(":/needle.png");`. I think your code - as posted here - is OK. Where are your qrc and png files located? What's the content of your pro file? – Burkhard Apr 13 '13 at 16:45
Saw your second comment too late. So, all is fine ;) – Burkhard Apr 13 '13 at 16:46

score 0 · Answer 3 · answered Apr 06 '17 at 17:27

0

I removed the project.user.pro file, reopened QT. And it chose the kit and rebuilt. Working now.

answered Apr 06 '17 at 17:27

Charles O

1
1

Cannot open resource file

3 Answers3

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