[swift-users] 'Error' is ambiguous for type lookup in this context

Zhao Xin owenzx at gmail.com
Wed Sep 7 22:52:40 CDT 2016


I also have a question on this API
‚Äč`func session(_ session: WCSession, activationDidCompleteWith
activationState: WCSessionActivationState, error: Error?)`. Why did it use
`throws`? The other APIs, which use NSError in Objective-C, change to
throws in Swift counterpart.

Zhaoxin

On Thu, Sep 8, 2016 at 10:52 AM, Shawn Erickson <shawnce at gmail.com> wrote:

> For one RealmSwift should likely consider changing their enum cases to use
> lowerCamelCase like Swift 3 did. Also at some point it should consider the
> changes to NSError / Swift.Error bridging.
>
> -Shawn
>
> On Wed, Sep 7, 2016 at 7:18 PM Zhao Xin via swift-users <
> swift-users at swift.org> wrote:
>
>> When I use RealmSwift in my project, I got an alert " 'Error' is
>> ambiguous for type lookup in this context".
>>
>> import UIKit
>>
>> import UserNotifications
>>
>> import WatchConnectivity
>>
>> import RealmSwift
>>
>>
>> extension AppDelegate:WCSessionDelegate {
>>
>>     func session(_ session: WCSession, activationDidCompleteWith
>> activationState: WCSessionActivationState, error: Error?) {
>>
>>
>>     }
>>  }
>>
>>
>> I think the reason is that in Swift, Error is a protocol. And in
>> RealmSwift, there is a `case Error(NSError)` in `public enum
>> RealmCollectionChange<T>`.
>>
>>
>> I managed to eliminate the alert buy change `Error?` to `Swift.Error?`.
>> Are there any other ways to fix this?
>>
>>
>> Zhaoxin
>> _______________________________________________
>> swift-users mailing list
>> swift-users at swift.org
>> https://lists.swift.org/mailman/listinfo/swift-users
>>
>
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