[this one sucks] Application works only in specific folder, exits silently in another folder

Hedge

By setting message-boxes I could determine that the problem occurs at this line:

@viewer.setSource(QUrl("qrc:/qml/TraktorScrobbler/main.qml"));@

In the project-file I include the qrc-file into the executable:

@# Compile Resources in Binary
RESOURCES +=
resources.qrc@

Peppy

is there that file??

Hedge

yeah it's built and compiled inside the .exe.

EDIT: I tested it in debug-mode. It works in it. Now I have to find out what's the difference between the builds.

Peppy

I don't work with QML but I would like to see more of your code before you start rendering your window...

Hedge

The main.qml looks like this:

@import QtQuick 1.0
import "../../desktop-components/components"

Button {
}
@

When I replaced it with:

@import QtQuick 1.0

Rectangle {
color: "blue"
}
@

It worked. I could execute the application and show the blue rectangle, so there must be something wrong with the desktop-components or styleplugin.dll which it needs.

giesbert

Hi Hedge,

I think, the bug is

@
import "../../desktop-components/components"
@

you tell it to go two dirs up and then to desktop-components/components.
If you put everything into the resource, you should reference the resources, otherwise use the relative path from the executable to that folder...

Hedge

Hello Gerolf,

I did some further testing with your suggestion (changed the file structure).

It is now like:

I also adjusted the import-path in the qml-file to import "desktop-components/components".

My funny find is that it works if I don't use the Qt-resource system:

@viewer.setSource(QUrl("main.qml"));@

As soon as I switch to QMLs resource-system again (QURL("qrc:/main.qml")) the executable hangs as before.

andre

You seem to misunderstand the Qt resource system. You don't need QUrl to work with it. You work with it by using a specially constructed file path, that starts with ":/". Depending on the structure you have applied in your resource file, your file name for the viewer should then be something like ":/main.qml" or ":/qml/main.qml". If you keep all in-qml file names (such as for images and other QML files) relative, you don't need to explicitly reference that a file comes from the resource system anymore.

Hedge

So you mean when I set the source like this:

@viewer.setSource(QUrl("qrc:/main.qml"));@

an

@import "desktop-components/components"@

in main.qml will work?

If that's right then something else must be wrong since that is causing the trouble.

andre

Who ever told you to use that QUrl?

Hedge

setSource requires a QUrl.

Peppy

QString is so beautiful class, isn't it?

andre

[quote author="Hedge" date="1305721995"]setSource requires a QUrl.[/quote]

Sorry, you are right. But you did not read the docs quite well either:

[quote]Ensure that the URL provided is full and correct, in particular, use QUrl::fromLocalFile() when loading a file from the local filesystem.[/quote]

Hedge

Sorry, that I didn't mention this earlier but that is a problem since my qrc-file is compiled into the executable-file by this entry in the .pro-file:

@# Compile Resources in Binary
RESOURCES +=
resources.qrc@

So
@viewer.setSource(QUrl::fromLocalFile(":/main.qml"));@

doesn't work in this case, because it seems to look for a real file.

The error is

@file:///D:/MyProject/:/main.qml: File not found @

andre

Could you show us the contents of your resources.qrc file?

Hedge

Yeah, no problem.

@<RCC>
<qresource prefix="/">
<file>main.qml</file>
<file>images/haken_gruen.gif</file>
<file>images/connected.png</file>
<file>images/not-connected.png</file>
<file>desktop-components/components/plugin/libstyleplugin.a</file>
<file>desktop-components/components/Button.qml</file>
<file>desktop-components/components/ButtonRow.qml</file>
<file>desktop-components/components/CheckBox.qml</file>
<file>desktop-components/components/ChoiceList.qml</file>
<file>desktop-components/components/components.pro</file>
<file>desktop-components/components/ContextMenu.qml</file>
<file>desktop-components/components/Dial.qml</file>
<file>desktop-components/components/Frame.qml</file>
<file>desktop-components/components/GroupBox.qml</file>
<file>desktop-components/components/Makefile</file>
<file>desktop-components/components/ProgressBar.qml</file>
<file>desktop-components/components/qmldir</file>
<file>desktop-components/components/RadioButton.qml</file>
<file>desktop-components/components/ScrollArea.qml</file>
<file>desktop-components/components/ScrollBar.qml</file>
<file>desktop-components/components/Slider.qml</file>
<file>desktop-components/components/SpinBox.qml</file>
<file>desktop-components/components/Switch.qml</file>
<file>desktop-components/components/Tab.qml</file>
<file>desktop-components/components/TabBar.qml</file>
<file>desktop-components/components/TabFrame.qml</file>
<file>desktop-components/components/TableView.qml</file>
<file>desktop-components/components/TextArea.qml</file>
<file>desktop-components/components/TextField.qml</file>
<file>desktop-components/components/ToolBar.qml</file>
<file>desktop-components/components/ToolButton.qml</file>
<file>desktop-components/components/custom/BasicButton.qml</file>
<file>desktop-components/components/custom/Button.qml</file>
<file>desktop-components/components/custom/ButtonColumn.qml</file>
<file>desktop-components/components/custom/ButtonGroup.js</file>
<file>desktop-components/components/custom/ButtonRow.qml</file>
<file>desktop-components/components/custom/CheckBox.qml</file>
<file>desktop-components/components/custom/ChoiceList.qml</file>
<file>desktop-components/components/custom/components.pro</file>
<file>desktop-components/components/custom/GroupBox.qml</file>
<file>desktop-components/components/custom/ProgressBar.qml</file>
<file>desktop-components/components/custom/qmldir</file>
<file>desktop-components/components/custom/Slider.qml</file>
<file>desktop-components/components/custom/SpinBox.qml</file>
<file>desktop-components/components/custom/TextField.qml</file>
<file>desktop-components/components/custom/behaviors/ButtonBehavior.qml</file>
<file>desktop-components/components/custom/behaviors/ModalPopupBehavior.qml</file>
<file>desktop-components/components/custom/private/ChoiceListPopup.qml</file>
</qresource>
</RCC>
@

giesbert

Hi Hedge,

this

@
<qresource prefix="/">
@

is not needed, it could be

@
<qresource prefix="">
@

Hedge

Thanks for the suggestion. That doesn't fix the problem though.
Do you have other suggestions?

goetz

This works for me:

------ main.cpp ------
@

#include <QtGui/QApplication>
#include <QDeclarativeView>

int main(int argc, char *argv[])
{
QApplication app(argc, argv);

QDeclarativeView view;
view.setSource(QUrl("qrc:/qml/QMLwithResource/main.qml"));
view.show();-

return app.exec();

}
@

------ qmlresource.qrc ------
@
<RCC>
<qresource prefix="/">
<file>qml/QMLwithResource/main.qml</file>
</qresource>
</RCC>
@

Watch out if you use the autogenerated qmlapplicationviewer, it has a setMainQmlFile which takes a QString as argument. On the Mac the path is adjusted to look into the AppBundle.app/Contents/Resources directory. You might want to adjust that class to take a QUrl as argument.

Hedge

Hello Volker. The problem must be the:

@import "desktop-components/components"@

inside the main.qml file. It works without it (I replaced the whole GUI with just a rectangle).