Swift Error: "Type 'DevLauncherAppController' does not conform to protocol 'UpdatesExternalInterface' in Expo SDK 52
typescript
Ethan JacksonWhen running a local with Expo (SDK 52) in custom development client, the Swift compiler threw an error:
type 'DevLauncherAppController' does not conform to protocol 'UpdatesExternalInterface'
The error points to this class declaration from DevLauncherAppController.swift:
46 | @objc(EXUpdatesDevLauncherController)
47 | @objcMembers
> 48 | public final class DevLauncherAppController: NSObject, InternalAppControllerInterface, UpdatesExternalInterface {
| ^ type 'DevLauncherAppController' does not conform to protocol 'UpdatesExternalInterface'
49 | public let eventManager: UpdatesEventManager = NoOpUpdatesEventManager()
50 |
51 | private let logger = UpdatesLogger()
The DevLauncherAppController class claims to conform to the UpdatesExternalInterface protocol, but the compiler reports missing requirements.
Answer
I downgraded my Xcode to 16.2 and the app built successfully.