SH2009: Something given once is given twice

Class: content, exit code 1.

The file gives twice what it may give once: in keymap.ron, a key or button listed twice for one action, bound to two actions of one group, or a layout listed twice; in a language pack, a text key used twice.

How to fix it. Keep one of the two: remove the other, or rename it if it was meant to be something else. The message names the one given twice.

For example:

fr/ui.ron: error[SH2009]: "menu.start": the key is used twice