在 podfile 错误中更新 Alamofire

Question

从 Swift 2.3 迁移到 Swift 3 后，我在编译时发现了这些错误：

Analyzing dependencies

[!] Unable to satisfy the following requirements:

- `Alamofire (~> 4.0)` required by `Podfile`
- `Alamofire (~> 4.0)` required by `Podfile`
- `Alamofire (~> 4.0)` required by `Podfile`
- `Alamofire (~> 4.0)` required by `Podfile`
- `Alamofire (~> 4.0)` required by `Podfile`

Specs satisfying the `Alamofire (~> 4.0)` dependency were found, but they required a higher minimum deployment target.

改变目标：

[!] Oh no, an error occurred.

Search for existing GitHub issues similar to yours:
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代码：

The file “Alamofire-watchOS.xcconfig” couldn’t be opened because there is no such file. (/Users/nameusers/MyApp/Pods/Target Support Files/Alamofire-watchOS/Alamofire-watchOS.xcconfig)

Alamofire-watchOS will not be code signed because its settings don't specify a development team.

error: unable to read module map contents from 'Target Support       Files/Alamofire-watchOS/Alamofire-watchOS.modulemap': Error   Domain=NSCocoaErrorDomain Code=260 "The file “Alamofire-watchOS.modulemap” couldn’t be opened because there is no such file." UserInfo={NSFilePath=/Users/nameusers/MyApp/Pods/Target Support Files/Alamofire-watchOS/Alamofire-watchOS.modulemap, NSUnderlyingError=0x7ff89768f8e0 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}

error: unable to read module map contents from 'Target Support Files/Alamofire-watchOS/Alamofire-watchOS.modulemap': Error Domain=NSCocoaErrorDomain Code=260 "The file “Alamofire-watchOS.modulemap” couldn’t be opened because there is no such file." UserInfo={NSFilePath=/Users/nameusers/MyApp/Pods/Target Support Files/Alamofire-watchOS/Alamofire-watchOS.modulemap, NSUnderlyingError=0x7ff895163940 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}

Answer 1

根据这些相关的 StackOverflow 问题，Swift 3 似乎只适用于 iOS 8 和更新版本。

听起来您需要更新Podfile （以及您自己的应用程序的项目设置）以获得更高的最低部署目标。 例如：

platform :ios, '8.0'

这意味着您将无法再支持旧版本的 iOS。