#3 src/mainwindow/mainwindow.cpp:29:47: warning: field 'lua_' is uninitialized when used here [-Wuninitialized]

[dcb]

MainWindow::MainWindow ( QWidget* parent ) :
QMainWindow ( parent ), executeLuaThread_(lua_,UCQExecuteLuaThread::EXECUTE_FILE)

Suggest initialise lua_ before first use.