Promisekit: Xcode 12 - Warning related to iOS 8 support (SPM)

[kikeenrique]

PLEASE READ THE TROUBLESHOOTING GUIDE.

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Using PromiseKit in SPM on Xcode 12 produces this warning:

_The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.0.99._

According to Xcode 12 release notes, iOS 8 is deprecated, check in https://developer.apple.com/documentation/xcode-release-notes/xcode-12-release-notes:

Xcode 12 includes SDKs for iOS 14, iPadOS 14, tvOS 14, watchOS 7, and macOS Catalina 10.15.6. The Xcode 12 release supports on-device debugging for iOS 9 and later, tvOS 9 and later, and watchOS 2 and later. Xcode 12 requires an Intel-based Mac running macOS Catalina 10.15.4 or later.

The problem could be fixed changing the platforms supported in Package.swift

-        .macOS(.v10_10), .iOS(.v8), .watchOS(.v2), .tvOS(.v9)
+        .macOS(.v10_10), .iOS(.v9), .watchOS(.v2), .tvOS(.v9)

[mxcl]

This is not a PromiseKit issue, I think more likely your Xcode project is misconfigured.

[kikeenrique]

It's not a misconfiguration problem, it's a deprecation on Xcode 12 that conflicts with current Package.swift platform definition.
You just need to create a new project on Xcode 12, add SPM dependency on PromiseKit and you'll see the warning.

[timbms]

I have the same issue as @kikeenrique. Would love to have it fixed.

[gajjartejas]

Xcode 12 does not support iOS 8 deployment, please update v8 to v9 in Package.swift.

[pushchris]

Any update on this? Definitely experiencing this as well

[kikeenrique]

Please, keep updated in #1170, as this is a closed topic and even can be consider a duplicate of this.