---
metadata:
  - name: generator
    content: Diplodoc Platform v5.63.4
alternate:
  - https://appmetrica.yandex.com/docs/en/sdk/ios/analytics/swift/BacktraceErrorKey.md
  - https://appmetrica.yandex.com/docs/ru/sdk/ios/analytics/swift/BacktraceErrorKey.md
  - https://appmetrica.yandex.com/docs/zh/sdk/ios/analytics/swift/BacktraceErrorKey.md
  - href: https://appmetrica.yandex.com/docs/zh/sdk/ios/analytics/swift/BacktraceErrorKey.md
    type: text/markdown
    title: Markdown version
  - href: https://appmetrica.yandex.com/docs/zh/llms.txt?revision=r21698989
    rel: describedby
---
> **Documentation Index:** Fetch the complete configuration index at https://appmetrica.yandex.com/docs/zh/llms.txt?revision=r21698989

# BacktraceErrorKey

```swift translate=no
let BacktraceErrorKey: String
```

来自 `userInfo` 字典的一个键，属于 `NSError`。 它应该包含错误的堆栈跟踪。 你可以使用 [Thread.callStackReturnAddresses](https://developer.apple.com/documentation/foundation/thread/1409565-callstackreturnaddresses) 方法获取它。

AppMetrica 自动解析传入的值。