If you're following the tutorial guide on the Steam forums, make sure to notice that the instructions are out of order when compared to the order the paths are listed in in the Editor (and shown in on the attached image in the tutorial guide).
The Editor Data path is shown first, and the Game Data path is shown second. However, the instructions tell you to "first click on Game Data Path" and select the "Data" folder, and then to "click on the Editor Data Path" and select the "Editor" folder.
In other words, just make sure you didn't enter the Data folder for the Editor Data Path, and the Editor folder for the Game Data path.
