If you have multiple projects loaded in a session, you can define the order in which they are built. For example, if project A depends on project B, project B must be built first.
Note: The build order is stored as a property of a session, not a project. You must open the session for these settings to take effect. For more information, see Managing Sessions.
To define the build order of projects within a session:
Qt Creator calculates the build order based on the dependencies that you specify for the projects loaded in the session.
Note: You cannot use this view to specify subprojects for projects. For more information on how to add subprojects, see Adding Subprojects to Projects.