Miért írja ezt ki a zdoom?

Execution could not continue.

Cannot find a game IWAD (doom.wad, doom2.wad, heretic.wad, etc.).

Did you install ZDoom properly? You can do either of the following:

1. Place one or more of these wads in the same directory as ZDoom.

2. Edit your zdoom-username.ini and add the directories of your iwads

to the list beneath [IWADSearch.Directories]