QML debugging

Thanatos

Can anybody tell me where (or how) exactly should i set QML_IMPORT_TRACE ?

"http://doc.qt.nokia.com/4.7-snapshot/qdeclarativedebugging.html":http://doc.qt.nokia.com/4.7-snapshot/qdeclarativedebugging.html

qtnext

if you use Qtcreator, go to project, run settings and add QML_IMPORT_TRACE to Run Environment with value set to 1.

mbrasser

If running from the command line on Linux or OS X, it's often convenient to prepend it to the line you are running, e.g:

@QML_IMPORT_TRACE=1 qmlviewer myFile.qml@

This "wikipedia article":http://en.wikipedia.org/wiki/Environment_variable also provides a general overview of setting environmental variables on the various platforms.

Thanatos

Still don't get it, can someone provide screen-shot where in QtCreator i can set that variable ?

mbrasser

What type of project is it? For a "Qt Quick UI" project (a project consisting of only QML files) you may have to specify a custom executable in order to be able to set environmental variables (for the screen shown "here":http://doc.qt.nokia.com/qtcreator-snapshot/creator-run-settings.html#specifying-run-settings-for-qt-quick-projects, you'd need to change the run configuration to "custom executable", at which point a "Run Environment" section should appear below, which allows you to set environmental variables).

It might be worth raising this as a suggestion for the creator team (something along the lines of "make setting environmental variables for Qt Quick UI projects easier") via "bugreports.qt.nokia.com":bugreports.qt.nokia.com

vishwajeet

how to setup in pro file ?

flowery

@mbrasser Could you please tell, Where to check the trace output .. Will it helpful to find the reason for application crash?.