Building Applications for the Web Setting Up Debugger

The Qt Creator debugger plugin acts as an interface between the Qt Creator core and external native debuggers that you can use to:

The following sections describe how to set up, launch, and interact with the debugger:

The debugger plugin automatically selects a suitable native debugger for each kit from the ones found on your system. You can edit the kits to override this choice.

To start an application from an open project under the control of a debugger, select the (Start Debugging of Startup Project) button or press F5. Other, less common start options are available in the Debug > Start Debugging menu.

Use the views in the Debug mode to inspect the state of your application while debugging.

You can interrupt a running application before it terminates or to find out why the application does not work correctly. Set breakpoints to stop the application for examining and changing variables, setting new breakpoints or removing old ones, and then continue running the application.

You can examine variable values and data structures in detail.

You can debug an application that runs on a remote target with the necessary helper processes also running.

Specify preferences for managing debugger processes. You can specify preferences that are common to all debuggers, or the native debugger that you use, GDB or CDB.

Qt Creator is able to show complex data types in a customized, user-extensible manner. For this purpose, it takes advantage of two technologies, collectively referred to as debugging helpers.

When debugging a Qt Quick application, you can inspect the state of the application while debugging JavaScript functions. You can set breakpoints, view call stack trace, and examine locals and expressions. While the application is running, you can inspect QML objects and user interfaces, as well as execute JavaScript expressions.

Illustrates how to debug C++ applications in Qt Creator.

Illustrates how to debug Qt Quick applications in Qt Creator.

If you encounter problems while debugging, check for possible solutions to them.

See also Debug CMake project files.

Building Applications for the Web Setting Up Debugger

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