---
id: "known-store-issues/xcode-26/app-crash-urlsessionconfiguration"
title: "URLSessionConfiguration Crash"
description: "Issue Description"
permalink: "/docs/known-store-issues/xcode-26/app-crash-urlsessionconfiguration"
slug: "docs/known-store-issues/xcode-26/app-crash-urlsessionconfiguration"
version: "current"
original_source: "docs/known-store-issues/xcode-26/app-crash-urlsessionconfiguration.mdx"
---

> **AI agents:** This is the Markdown version of a RevenueCat documentation page. For the complete documentation index, see [llms.txt](https://www.revenuecat.com/docs/llms.txt).

## Issue Description

Xcode 26 beta introduces a bug that may cause your app to crash when integrating multiple libraries—such as RevenueCat's SDK—that utilize `URLSessionConfiguration`. This issue occurs when running the app on iOS 26 simulators.

You can find more information in the following [Apple Developer Forum thread](https://developer.apple.com/forums/thread/787365).

## Affected Versions

- Xcode 26 beta
- iOS 26 simulators

## Symptoms

- Your project includes libraries in addition to RevenueCat.
- The app crashes immediately upon launch when using Xcode 26 beta with iOS 26 simulators.

## Workarounds

While awaiting a fix from Apple, a temporary workaround is to initiate a networking call early during app initialization. This appears to prevent the crash.

```swift
// App Initialization
import Networking

@main
struct MyApp: App {
    init() {
        nw_tls_create_options()
    }
}

// AppDelegate Initialization
import Networking

class AppDelegate: UIResponder, UIApplicationDelegate {
    func application(_ application: UIApplication, didFinishLaunchingWithOptions _: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {

        nw_tls_create_options()
        Purchases.configure(withAPIKey: "redacted")

        return true
    }
}
```

## Apple Feedback

For ongoing updates, refer to [this Apple Developer Forum thread](https://developer.apple.com/forums/thread/787365). If the workaround above does not resolve the issue, please consider filing a bug report within that thread.

## Status

🕰️ Waiting on Apple's resolution.