CreateLink results in Warning: QString::arg: Argument missing: \??\, on Windows

Adding operation CreateLink consistently reports Warning: QString::arg: Argument missing: ??\, on Windows. With that the link is created but it does not work.

Steps to reproduce:

1.) run binarycreator on ifw proj attached

2.) run installer with -v

3.) proceed to install & observe the output

Note: the example creates the link on the user desktop