> I have written my own qooxdoo application, and I using internet
> Explorer to run it.
> But when running, appear an error that show :
Is that the real source code that you have shown us? Why do you have all
the qooxdoo include statements in your html file? If you copy the
skeleton application and use the build system you won't need any of those
- they are created automatically by the qooxdoo compiler. You don't want
it hardcoded anyway - the order of the included files might be
automatically changed because of dependencies.
Get that sorted first and your other problem might go away :-)