Qt warnings when setting working catalog

[johko]

When I set the working catalog and it comes upon "missing files", Qt produces the warning, or at least output: QFileInfo::absolutePath: Constructed with empty filename

The program is still running normally but these messages in some cases are so many, that the output window is mostly filled by them.

[MartinSchouwenburg]

yup I have seen them too. They come from the resource class as far as I can determine which apparently tries to do something with an empty file(name). I will resolve it after I have moved my stuff to qt 5.3.1