Failed to load mods: Error while loading recipe prototype "deep-mining-iron-ore" (recipe): Surface conditions are disabled and can not be used. Surface conditions require space-travel. Modifications: Deep Mine 2

Can someone help?

Mod probably need a space age dlc to work.

Updated to have correct dependencies

Making https://mods.factorio.com/mod/enable-all-feature-flags a requirement is better I think, as then people who have bought the DLC can still play it if they disable space-age for some reason (maybe some overhaul is not compatible). You can also set the feature-flag requirements in info.json of your mod.

But I think it would be even better if the mod is also usable without buying the DLC. You can do this by checking if the necessary feature flags are enabled, see https://lua-api.factorio.com/latest/types/FeatureFlags.html

Thanks for the suggestion, I updated it to use the feature flag for space travel so it should now work with the base 2.0 version

Thank you! It works now.