debugging QBS

gistfile1.txt

$ cat project.qbp 
import qbs.base 1.0

Project { 
  moduleSearchPaths: "."
  Application {
           name: "helloworld"
           files: ["main.cpp", "a.ml"]
           Depends { name: "Qt.core" }
           Depends { name: "cpp" }
           Depends { name: "Qt.declarative" }
           Depends { name: "ocaml" }
  }
}
$ cat ocaml/OCamlModule.qbs 
import qbs.base 1.0

Module {
  name: "ocaml"
  FileTagger {
    pattern: "*.ml"
    fileTags: ["ml"]
  }
  Rule {
    id: "compile"
    prepare: {
            var cmd = new Command("ocaml -c", input.basename );
            return cmd;      
      
    }
  }
}
$ qbs -vvvvv
Found project file /media/disk/kakadu/prog/lablqt/qml/test2qbs/project.qbp
TRACE: pluginmanager: loading plugins from '/media/disk/kakadu/prog/qbs/plugins/'.
TRACE: pluginmanager: scanner plugin '/media/disk/kakadu/prog/qbs/plugins/libqbs_cpp_scanner.so' loaded.
TRACE: pluginmanager: scanner plugin '/media/disk/kakadu/prog/qbs/plugins/libqbs_qt_scanner.so' loaded.
DEBUG: [BG] No stored build graph found that's compatible to the desired build configuration.
TRACE: [LDR] resolving /media/disk/kakadu/prog/lablqt/qml/test2qbs/project.qbp
TRACE: [LDR] resolve top-level /media/disk/kakadu/prog/lablqt/qml/test2qbs/project.qbp
TRACE: [LDR] resolve top-level /media/disk/kakadu/prog/lablqt/qml/test2qbs/project.qbp
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/core' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/core/qtcore.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/core' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/core/qtcore.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/declarative' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/declarative/declarative.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/core' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/core/qtcore.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/core' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/core/qtcore.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/gui' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/gui/qtgui.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/core' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/core/qtcore.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/core' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/core/qtcore.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/network' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/network/network.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/core' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/core/qtcore.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/script' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/script/script.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/core' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/core/qtcore.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'cpp' from /media/disk/kakadu/prog/qbs/share/qbs/modules/cpp/linux-gcc.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
TRACE: loading module 'qt/xmlpatterns' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qt/xmlpatterns/qtxmlpatterns.qbs
TRACE: loading module 'qbs' from /media/disk/kakadu/prog/qbs/share/qbs/modules/qbs/common.qbs
ERROR: id: must be followed by identifier