Improve loom.mixin error message now that the AP is disabled by default.#1383

modmuss50 merged 1 commit intoFabricMC:exp/1.12FabricMC/fabric-loom:exp/1.12from

modmuss50:mixin-ap-errormodmuss50/fabric-loom-1:mixin-ap-errorCopy head branch name to clipboard