# SignalCredentialUnknownException

Artifact: [androidx.credentials:credentials](https://developer.android.com/jetpack/androidx/releases/credentials) [View Source](https://cs.android.com/search?q=file:androidx/credentials/exceptions/publickeycredential/SignalCredentialUnknownException.kt+class:androidx.credentials.exceptions.publickeycredential.SignalCredentialUnknownException) Added in [1.6.0](https://developer.android.com/jetpack/androidx/releases/credentials#1.6.0)

*** ** * ** ***

<br />

```
class SignalCredentialUnknownException : SignalCredentialStateException
```

<br />

|---|---|---|---|---|
| [kotlin.Any](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-any/index.html) |||||
| ↳ | [kotlin.Throwable](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/index.html) ||||
|   | ↳ | [java.lang.Exception](https://developer.android.com/reference/java/lang/Exception.html) |||
|   |   | ↳ | [androidx.credentials.exceptions.publickeycredential.SignalCredentialStateException](https://developer.android.com/reference/kotlin/androidx/credentials/exceptions/publickeycredential/SignalCredentialStateException) ||
|   |   |   | ↳ | [androidx.credentials.exceptions.publickeycredential.SignalCredentialUnknownException](https://developer.android.com/reference/kotlin/androidx/credentials/exceptions/publickeycredential/SignalCredentialUnknownException) |

*** ** * ** ***

This is thrown when the signal credential state operation failed with no more detailed information.

| See also |
|---|---|
| `https://developer.android.com/reference/kotlin/androidx/credentials/CredentialManager` |   |

## Summary

| ### Public constructors |
|---|
| `https://developer.android.com/reference/kotlin/androidx/credentials/exceptions/publickeycredential/SignalCredentialUnknownException#SignalCredentialUnknownException(kotlin.CharSequence)(errorMessage: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-char-sequence/index.html?)` |

### Inherited functions

From [kotlin.Throwable](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/index.html) `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/add-suppressed.html(exception: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/index.html)` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/index.html` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/fill-in-stack-trace.html()` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/index.html` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/init-cause.html(cause: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/index.html)` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/print-stack-trace.html()` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/print-stack-trace.html(s: https://developer.android.com/reference/java/io/PrintStream.html)` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-unit/index.html` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/print-stack-trace.html(s: https://developer.android.com/reference/java/io/PrintWriter.html)`

### Inherited properties

From [kotlin.Throwable](https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/index.html) `open https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/index.html?` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/cause.html` `open https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/localized-message.html` `open https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-string/index.html?` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/message.html` `open https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html<https://developer.android.com/reference/java/lang/StackTraceElement.html>` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/stack-trace.html` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-array/index.html<https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/index.html>` `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-throwable/suppressed.html`

## Public constructors

### SignalCredentialUnknownException

Added in [1.6.0](https://developer.android.com/jetpack/androidx/releases/credentials#1.6.0)

```
SignalCredentialUnknownException(errorMessage: CharSequence? = null)
```