Type 'MyApp' does not conform to protocol 'App'

Question

pictureman OP

Created Mar ’24

Replies 2

Boosts 0

Participants 2

Hello!

Newbie here learning Swift and tweaking a VisionOS app.

I am following Apple documentation to specify an initial window size. I have the following code in my ContentView.swift file:

@main
struct MyApp: App {
    var body: some Scene {
        WindowGroup {
            ContentView()
        }
        .defaultSize(CGSize(width: 600, height: 400))
    }
}

When I build the project, I get the following 2 errors:

Type 'MyApp' does not conform to protocol 'App' (line 2)
'Scene' is ambiguous for type lookup in this context (line 3)

Any tips on how I can resolve these?

Thank you.

Answered by pictureman in 782642022

I was able to get it to work by tweaking the code to the following (thank you 'lorem ipsum' over at Stack Overflow!)

Here's the corrected code:

struct GlimpseVision: App {
    var body: some SwiftUI.Scene {
        WindowGroup {
            ContentView()
        }
        .defaultSize(CGSize(width: 1000, height: 250))
    }
}

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Answer 1

Claude31 OP

Mar ’24

I have the following code in my ContentView.swift file: Is it really in ContentView file ? It should be in a MyApp file.

I tested by creating the same app. Here is the structure you should get when you create a VisionOS project (called My):

Capture d’écran 2024-03-13 à 19.54.23.png

ContentView File is

import SwiftUI
import RealityKit
import RealityKitContent

struct ContentView: View {
    var body: some View {
        VStack {
            Model3D(named: "Scene", bundle: realityKitContentBundle)
                .padding(.bottom, 50)

            Text("Hello, world!")
        }
        .padding()
    }
}

#Preview(windowStyle: .automatic) {
    ContentView()
}

0

Answer 2

pictureman OP

Mar ’24

Accepted Answer

I was able to get it to work by tweaking the code to the following (thank you 'lorem ipsum' over at Stack Overflow!)

Here's the corrected code:

struct GlimpseVision: App {
    var body: some SwiftUI.Scene {
        WindowGroup {
            ContentView()
        }
        .defaultSize(CGSize(width: 1000, height: 250))
    }
}

0