Warning: Failed to open settings database at "C:/Users/???????/AppData/Roaming/Nokia/QtCreator.db" ("Error opening database")
Could not initialize help engine: "Cannot open collection file: C:/Users/???????/AppData/Roaming/Nokia/qtcreator/helpcollection.qhc" 
Could not initialize help engine: "Cannot open collection file: C:/Users/???????/AppData/Roaming/Nokia/qtcreator/helpcollection.qhc" 
Error registering namespace ' "com.trolltech.assistant.470" ' from file ' "C:/Qt/Qt-4.7.0/doc/qch/assistant.qch" ': "The collection file 'C:/Users/???????/AppData/Roaming/Nokia/qtcreator/helpcollection.qhc' is not set up yet!" 
Error registering namespace ' "com.trolltech.designer.470" ' from file ' "C:/Qt/Qt-4.7.0/doc/qch/designer.qch" ': "The collection file 'C:/Users/???????/AppData/Roaming/Nokia/qtcreator/helpcollection.qhc' is not set up yet!" 
Error registering namespace ' "com.trolltech.linguist.470" ' from file ' "C:/Qt/Qt-4.7.0/doc/qch/linguist.qch" ': "The collection file 'C:/Users/???????/AppData/Roaming/Nokia/qtcreator/helpcollection.qhc' is not set up yet!" 
Error registering namespace ' "com.trolltech.qmake.470" ' from file ' "C:/Qt/Qt-4.7.0/doc/qch/qmake.qch" ': "The collection file 'C:/Users/???????/AppData/Roaming/Nokia/qtcreator/helpcollection.qhc' is not set up yet!" 
Error registering namespace ' "com.trolltech.qml.460" ' from file ' "C:/Qt/Qt-4.7.0/doc/qch/qml.qch" ': "The collection file 'C:/Users/???????/AppData/Roaming/Nokia/qtcreator/helpcollection.qhc' is not set up yet!" 
Error registering namespace ' "com.trolltech.qt.470" ' from file ' "C:/Qt/Qt-4.7.0/doc/qch/qt.qch" ': "The collection file 'C:/Users/???????/AppData/Roaming/Nokia/qtcreator/helpcollection.qhc' is not set up yet!"