Special characters in path prevent loading of application

Mind the following restriction when installing Neuron Power Engineer and creating new projects

No blanks or special characters in project name and installation path

Make sure that there are no blanks or special characters (such as umlauts, e.g. ä, ö, ü) in a project name and in the installation path. If anyway, Neuron Power Engineer will not be able to load the application onto the PLC.
For the paths and project names, letters A – Z or a – z, numbers 0 – 9, dots (character .), underlines (character _) and dashes (character -) are allowed. Examples for allowed project names: my.projectmy-project, my_Project_01

More useful information: Disabled button "Build and Load Application"