Unity in Play Mode: *sees unused namespace* "hehe, whatever bro, I'm chill"
Unity during Build: "UNUSED NAMESPACE? UNACCEPTABLE. BUILD TERMINATED. DEPLOY THE TACTICAL NUKE."
The duality of Unity's compiler is truly something to behold. It'll let you run your game with all sorts of questionable code decisions, but the moment you try to actually build it? Suddenly it becomes a code quality inspector with zero tolerance policies. That innocent using UnityEditor.* statement you forgot about? Yeah, that's staying in the editor where it belongs, buddy. Production builds don't need your experimental graph view nonsense.
Pro tip: UnityEditor namespaces literally cannot exist in builds since they're editor-only. It's like trying to ship your dev tools to production. Unity's just protecting you from yourself... in the most annoying way possible.
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