I’m trying to use the Vision framework in a Swift Playground to perform face detection on an image. The following code works perfectly when I run it in a regular Xcode project, but in an App Playground, I get the error:
Thread 12: EXC_BREAKPOINT (code=1, subcode=0x10321c2a8)
Here's the code:
import SwiftUI
import Vision
struct ContentView: View {
var body: some View {
VStack {
Text("Face Detection")
.font(.largeTitle)
.padding()
Image("me")
.resizable()
.aspectRatio(contentMode: .fit)
.onAppear {
detectFace()
}
}
}
func detectFace() {
guard let cgImage = UIImage(named: "me")?.cgImage else { return }
let request = VNDetectFaceRectanglesRequest { request, error in
if let results = request.results as? [VNFaceObservation] {
print("Detected \(results.count) face(s).")
for face in results {
print("Bounding Box: \(face.boundingBox)")
}
} else {
print("No faces detected.")
}
}
let handler = VNImageRequestHandler(cgImage: cgImage, options: [:])
do {
try handler.perform([request]) // This line causes the error.
} catch {
print("Failed to perform Vision request: \(error)")
}
}
}
The error occurs on this line:
try handler.perform([request])
Details:
This code runs fine in a normal Xcode project (.xcodeproj).
I'm using an App Playground instead (.swiftpm).
The image is being included in the .xcassets folder.
Is there any way I can mitigate this issue? Please do not recommend switching to .xcodeproj, as I am making a submission for Apple's Swift Student Challenge, and they require that I use .swiftpm.
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