---
title: readerSessionInvalidationErrorSystemIsBusy
framework: corenfc
role: symbol
role_heading: Type Property
path: corenfc/nfcreadererror-swift.struct/readersessioninvalidationerrorsystemisbusy
---

# readerSessionInvalidationErrorSystemIsBusy

The reader session failed because the system is busy.

## Declaration

```swift
static var readerSessionInvalidationErrorSystemIsBusy: NFCReaderError.Code { get }
```

## See Also

### Session Errors

- [readerSessionInvalidationErrorFirstNDEFTagRead](corenfc/nfcreadererror-swift.struct/readersessioninvalidationerrorfirstndeftagread.md)
- [readerSessionInvalidationErrorSessionTerminatedUnexpectedly](corenfc/nfcreadererror-swift.struct/readersessioninvalidationerrorsessionterminatedunexpectedly.md)
- [readerSessionInvalidationErrorSessionTimeout](corenfc/nfcreadererror-swift.struct/readersessioninvalidationerrorsessiontimeout.md)
- [readerSessionInvalidationErrorUserCanceled](corenfc/nfcreadererror-swift.struct/readersessioninvalidationerrorusercanceled.md)