Sorry for another question from me, but...
I deleted the "Inventory GUI" sprites because I made my own, with selfmade sprites of course.
I checked several times, that no object using an old sprite is in that GUI, but when I use "GUIOn (INVENTORY);" the game crashes with that "GUI Sprites deleted" message!
What can I do?
Are you using a custom inventory or the built-in InventoryScreen?
Either way, you should replace the existing sprites rather than deleting them and importing new ones, since that will re-number them.
Use the Re-number Sprite feature to put the three GUI icons back to slots 2041, 2042 and 2043.
I am using the standard SInventoryScreen!
Thanks for your tip and the slot numbers!
EDIT: How can I rename sprites???
Right-click on the sprite and do "Change sprite number". This was only introduced in v2.56 so if you're using an older version you can't do it.
I am upgrading.
Thanks!!!