Phone reboot with app start from Qt Creator

Phone reboot after app run from Qt Creator, even with empty Qt Quick project. In console i see that sis packet was buil successfully, than instaled on phone, after that i see message "Launching" and than phone rebooted. I can run app from phone after reboot with no error or something. I have no idea why this happen, hope someone help me.
Qt 4.8 Qt Creator 2.4.1 WinXP SP3
Nokia 700 Symbian Belle FP

Hi, it could cause that you have the wrong version of coda installed on your device.

You MUST have installed version of Qt SDK from Nokia site no other. [url]http://www.developer.nokia.com/Develop/Qt/Tools/[/url].
Uninstall CODA that you have now in your device.
Go to main directory where you installed Qt SDK.
Open directory [U]\Symbian\sis\common\CODA[/U] copy file [B]Public-CODA-1.0.6-for-S60v5-Anna-Belle-vFuture.sis[/B] and paste it in your device.
Install CODA on your device.
Reboot your device and try it again.

Thanks it help. Now i have this error:
[QUOTE]Error: '* Cannot debug 'C:\sys\bin\delTest.exe': ensure the DEBUGGABLE[_UDEBONLY] flag is set in its MMP
(permission denied)' Code: -46[/QUOTE]
i add next line to pro file:
[QUOTE]symbian:MMP_RULES += "DEBUGGABLE"
[url]http://www.developer.nokia.com/Community/Wiki/Changes_in_Nokia_Belle_and_Qt_4.x[/url][/QUOTE]
with no effect. But anyway this is much faster than phone reboot.

There are several steps required to set up QML debugging. You need to compile the debugger, and there are other steps:
[url]http://doc.qt.digia.com/qtcreator-snapshot/creator-debugging-qml.html[/url]
(Also... [url]http://doc.qt.digia.com/stable/qdeclarativedebugging.html#debugging-with-qt-creator[/url] )