A build check error in the area "The platform". An error: the game cannot be published until it is fixed.
The build check runs on every game LobbyLab builds, and each problem it finds has a stable code, the exact message, the file and line when it names one, and a link to this page.
What the check looks at
Problems of the check itself, not of the game.
How to fix it
Run the check again in a minute. If it still fails, tell us through https://lobbylab.gg/support.
See also: every error code, the API reference and the docs.