SH2008: A name in the file isn't one it may use

Class: content, exit code 1.

The file names something that isn't there: in keymap.ron, an action the game doesn't have, or a key chord or button that doesn't parse; in the language file, a capitalized {Name} placeholder that is neither an action nor {Cursor}; in a map, a legend's terrain the game doesn't know, or a tile character the legend doesn't give.

How to fix it. Use one of the names the message lists, or fix the spelling. A key or button is named as controls.md writes it; a tile character needs a line in the map's legend. A placeholder that is a value a screen passes is lowercase ({seeds}).

For example:

base/data/keymap.ron:7: error[SH2008]: layout "LeftHanded": unknown action "Jumpp"; known actions: Up, Down, Left, Right, Jump