In an App Playground Xcode project there is no Targets menu in the UI, When I try use the model, it says the model is not in scope. When I did it in a regular project it automatically generated a Swift Class and had no erorrs because it had a target but I see no place to add a target on an App playground.
Swift Playground
RSS for tagLearn and explore coding in Swift through interactive learning experiences on the Swift Playground app for iPadOS and macOS.
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I am trying to run TinyLlama directly using Swift Playgrounds for iOS. I have tried multiple solutions, like libraries (LLM.swift, swift-transformers, ...) which never worked due to import issues, and also tried importing an exported mlmodel.
For the later, I followed the article about Llama 3.1 on CoreML. It was hard to understand how to do the inference with it, but I was able to export a mlpackage, that I then placed in a xcode project to generate the mlmodelc (compiled model) and the model class. I had to go with the first version described in the article, without optimizations, as I got errors during model loading with the flexible input shapes. I was able to run the model for one token generation.
But my biggest problem is that, though the mlmodelc is only 550 MiB, th model loads 24+GiB of memory, largely exceeding what I can have on an iOS device.
Is there a way to use do LLM inferences on Swift Playgrounds at a reasonable speed (even 1 token / s would be sufficient)?
I intend to participate in the Swift Student Challenge 25. I see Rules, It is mentioned that Playgrounds works should be a work that can be experienced in three minutes. However, my work does not meet this requirement.
Create an interactive scene in an app playground that can be experienced within three minutes.
Initially, my work was not intended for the Challenge but for the App Store. However, I decided to submit it to the Challenge, and my work and I met the requirements of the Challenge. Therefore, my work is a complete application, which makes it impossible for the judges to experience it within three minutes. It may take more time. Does this have any impact?
Topic:
Community
SubTopic:
Swift Student Challenge
Tags:
Swift Student Challenge
Swift
Swift Playground
SwiftUI
I am having issues with exported playgrounds from Xcode, when I try to open my exported swift fill I get the following message: "Couldn't load settings from contents.xcplayground"
Xcode Version: Version 16.2 (16C5032a)
Steps to reproduce
Create new playground in Xcode.
File->Export
Open exported file.
The issue still press persist after reinstalling Xcode.
Hello, I have an issue with importing some .mp3 files into a swift playground project (in Xcode, not in the Playground app). They worked fine in the Xcode project, but for some reason playgrounds isn't able to find them. I imported them the exact same way as I did in the Xcode project.
Hey there-
I'm having a quite interesting bug on Swift Playgrounds.
I am trying to run my app with this following code snippet which does not compile on Swift Playgrounds, yet compiles on XCode (note: this is a Swift Playground app)
if #available(iOS 18.0, *) {
//simple function to get the indices of other items that have the same date as the "date" variable
let indices = data!.indices(where: { item in
let sameMonth = Calendar.current.component(.month, from: item.time) == Calendar.current.component(.month, from: date)
let sameYear = Calendar.current.component(.year, from: item.time) == Calendar.current.component(.year, from: date)
let sameDay = Calendar.current.component(.day, from: item.time) == Calendar.current.component(.year, from: date)
return sameDay && sameMonth && sameYear
})
However, the indices(where:) codeblock seems to stop the app from compiling (ONLY on Swift Playgrounds - it works perfectly fine on XCode).
I am getting the following error:
Cannot call value of non-function type 'Range<Array<Int>.Index>' (aka 'Range<Int>')
Please let me know if you have any insight regarding this issue.
-ColoredOwl
Topic:
Programming Languages
SubTopic:
Swift
Tags:
Swift Playground
Xcode
Playground Support
SwiftUI
I just wonder if it’s possible to add push notifications to an app made it Swift Playgrounds or if it always has to be exported to XCode first
Topic:
Developer Tools & Services
SubTopic:
Swift Playground
Tags:
APNS
Swift Playground
SwiftUI
User Notifications
I keep trying to use the app but every time I try to click the module "get started with code" it crashes and produces an error log, attached.
Crash log
Topic:
Developer Tools & Services
SubTopic:
Swift Playground
Tags:
Swift Playground
Playground Support
Trying to add a Reality Composer Pro project into my swift playground application. Can't figure out what name to call for the package.
Topic:
Spatial Computing
SubTopic:
Reality Composer Pro
Tags:
Swift Student Challenge
Swift Playground
RealityKit
Following code crashes (sigsegv in lldb-rpc-server) when run as swift 6, but runs correctly when run as swift 5 (from "Metal by tutorials"):
import PlaygroundSupport
import MetalKit
print("start")
guard let device = MTLCreateSystemDefaultDevice() else {
fatalError("GPU is not supported")
}
let frame = CGRect(x: 0, y: 0, width: 600, height: 600)
let view = MTKView(frame: frame, device: device)
view.clearColor = MTLClearColor(red: 1, green: 1, blue: 0.8, alpha: 1)
let allocator = MTKMeshBufferAllocator(device: device)
let mdlMesh = MDLMesh(sphereWithExtent: [0.75,0.75,0.75], segments: [100, 100], inwardNormals: false, geometryType: .triangles, allocator: allocator)
let mesh = try MTKMesh(mesh: mdlMesh, device: device)
guard let commandQueue = device.makeCommandQueue() else {
fatalError("Could not create a command queue")
}
let shader = """
#include <metal_stdlib>
using namespace metal;
struct VertexIn {
float4 position [[attribute(0)]];
};
vertex float4 vertex_main(const VertexIn vertex_in [[stage_in]])
{
return vertex_in.position;
}
fragment float4 fragment_main() {
return float4(1, 0, 0, 1);
}
"""
print("A")
let library = try device.makeLibrary(source: shader, options: nil)
let vertexFunction = library.makeFunction(name: "vertex_main")
let fragmentFunction = library.makeFunction(name: "fragment_main")
let pipelineDescriptor = MTLRenderPipelineDescriptor()
pipelineDescriptor.colorAttachments[0].pixelFormat = .bgra8Unorm
pipelineDescriptor.vertexFunction = vertexFunction
pipelineDescriptor.fragmentFunction = fragmentFunction
print("X")
pipelineDescriptor.vertexDescriptor = MTKMetalVertexDescriptorFromModelIO(mesh.vertexDescriptor)
let pipelineState = try device.makeRenderPipelineState(descriptor: pipelineDescriptor)
guard let commandBuffer = commandQueue.makeCommandBuffer(),
let renderPassDescriptor = view.currentRenderPassDescriptor,
let renderEncoder = commandBuffer.makeRenderCommandEncoder(descriptor: renderPassDescriptor)
else {
fatalError()
}
renderEncoder.setRenderPipelineState(pipelineState)
renderEncoder.setVertexBuffer(mesh.vertexBuffers[0].buffer, offset: 0, index: 0)
guard let submesh = mesh.submeshes.first else {
fatalError()
}
renderEncoder.drawIndexedPrimitives(type: .triangle, indexCount: submesh.indexCount, indexType: submesh.indexType, indexBuffer: submesh.indexBuffer.buffer, indexBufferOffset: 0)
renderEncoder.endEncoding()
guard let drawable = view.currentDrawable else {
fatalError()
}
commandBuffer.present(drawable)
commandBuffer.commit()
print("test")
PlaygroundPage.current.liveView = view
Crash report: https://gist.githubusercontent.com/tumdum/8aa53bc806619c0d21c93a55fae07937/raw/370b00c07b08fff8856f9fc678de9888faa8d06e/crash.log
I'm on macOS 15.1.1 (24B2091) + Xcode 16.2 (16C5032a)
I am building an app playground for SSC'25 where I want to use Multipeer Connectivity framework that would allow me to send and receive data to and from stranger devices. I also want to use some other open-source packages for some of the features. I just wanted to know if we are allowed to use or not?
Topic:
Community
SubTopic:
Swift Student Challenge
Tags:
Swift Student Challenge
Swift Playground
SwiftUI
I want to compare the colors of two model entities (spheres). How can i do it? The method i'm currently trying to apply is as follows
case let .color(controlColor) = controlMaterial.baseColor, controlColor == .green {
// Flip target sphere colour
if let targetMaterial = targetsphere.model?.materials.first as? SimpleMaterial,
case let .color(targetColor) = targetMaterial.baseColor, targetColor == .blue {
targetsphere.model?.materials = [SimpleMaterial(color: .green, isMetallic: false)] // Change to |1⟩
} else {
targetsphere.model?.materials = [SimpleMaterial(color: .blue, isMetallic: false)] // Change to |0⟩
}
}
This method (baseColor) was deprecated in swift 15.0 changes to 'color' but i cannot compare the value color to each other.👾
I’m working in the app playground and want to add my usdz file but when i drag drop the file to my main folder i cannot add target to it which leads to a resource not found error while I build my app. It was working on a normal xcode project but while transitioning to app playground it is not working. How can I fix this issue?
Topic:
Developer Tools & Services
SubTopic:
Xcode
Tags:
Swift Student Challenge
ARKit
Swift Playground
RealityKit
When I go to the App Settings menu in Swift Playgrounds and attempt to upload to App Store Connect, I run into the below error screen:
I am registered with the Apple Developer Program.
Swift Playgrounds is updated to its latest version.
This is occurring on both macOS and iPadOS.
All the information I put in is valid.
Any reason why this would be happening?
Topic:
Developer Tools & Services
SubTopic:
Swift Playground
Tags:
Swift
Swift Playground
App Store Connect
Hi everyone, I am a new developer.
I am writing some code in swift playgrounds and came across some odd errors. I have looked for solutions and have found nothing. If any more experienced developers could point me in the right direction, that would be great.
Hi, I have recently downloaded the app to start learning how to code in swift and so on.
On my first try I have gotten the error stating that ”.swiftpm files cannot be opened”. I have followed some forum posts. I restarted my iPad several times and redown the app several times. I tried to disable the iCloud sync but I think I deleted the iCloud directory entirely that just results in the app closing on any action taken. (such as pressing the “New App” option or choosing the quick actions to make apps).
Is there a way to fix this?
Any help is appreciate, please ask me to provide any extra needed information.
Topic:
Developer Tools & Services
SubTopic:
Swift Playground
Tags:
Swift Playground
Playground Support
Hi everyone,
I've been struggling for a few weeks to integrate my Core ML Image Classifier model into my .swiftpm project, and I’m hoping someone can help.
Here’s what I’ve done so far:
I converted my .mlmodel file to .mlmodelc manually via the terminal.
In my Package.swift file, I tried both "copy" and "process" options for the resource.
The issues I’m facing:
When using "process", Xcode gives me the error:
"multiple resources named 'coremldata.bin' in target 'AppModule'."
When using "copy", the app runs, but the model doesn’t work, and the terminal shows:
"A valid manifest does not exist at path: .../Manifest.json."
I even tried creating a Manifest.json manually to test, but this led to more errors, such as:
"File format version must be in the form of major.minor.patch."
"Failed to look up root model."
To check if the problem was specific to my model, I tested other Core ML models in the same setup, but none of them worked either.
I feel stuck and unsure of how to resolve these issues. Any guidance or suggestions would be greatly appreciated. Thanks in advance! :)
Topic:
Machine Learning & AI
SubTopic:
Core ML
Tags:
Swift Packages
Swift Student Challenge
Swift Playground
Core ML
Some reason the image 'Ren' is not being loaded even though it is in the project how can I resolve this issue in Xcode Playgrounds?
I’m curious about the situation since the Playgrounds haven’t released a new version to support the numerous new frameworks released this year at WWDC24. How are we supposed to build with these new frameworks if they haven’t even been released for Playgrounds for the Swift Student Challenge?
Topic:
Developer Tools & Services
SubTopic:
Swift Playground
Tags:
Swift
Swift Playground
Playground Support
SwiftUI
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.