In case there is any non-syntactical problem with a module's setupRunEnvironment script, QtCreator crashes immediately. As a trivial example, use a module that has a setupRunEnvironment script like this:

    setupRunEnvironment: {
        spark
    }

The reason for the crash is that qbs::RunEnvironment::runEnvironment throws a qbs::ErrorInfo exception ("Error while setting up run environment: ReferenceError: Can't find variable: spark") that is never catched in QtCreator.

This is supposed to be a bug in Qbs, since the public API is designed in a way that no exceptions must ever pass the API boundary.