[It’d help if you included the error as text rather than a screen shot. See Quinn’s Top Ten DevForums Tips for this and other tips.]
The error you’re seeing:
unable to resolve product type 'com.apple.product-type.kernel-extension.iokit.shallow' for platform 'macosx'
relates to a fundamental but generally hidden feature of Xcode:
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Every target has a product type. For example, an app target builds differently than a framework target which builds differently than a kext target.
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That product type must be supported by your platform. You can’t, for example, build a kext target for iOS.
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The way that the product type builds can vary by platform. For example, Xcode builds macOS frameworks differently than iOS frameworks.
You can’t change the product type of a target. It’s set when you create the target and is fixed after that.
If you dig into the Xcode project file, you’ll see the product manifest as a property called productType. For third-party kexts, this is always com.apple.product-type.kernel-extension.
In this case the target you’re trying to build uses a product type (com.apple.product-type.kernel-extension.iokit.shallow) that’s not supported by your platform (macosx). I suspect that this is because you’re using the public macOS SDK, which supports fewer product types than the internal SDK used by engineering teams at Apple. However, I don’t have all the details here because, like you, I work exclusively with Apple’s public tools.
Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"
