# InitializationFailureReason

Represents the initialiation failure.

| **UNSUPPORTED\_OS\_VERSION**       | The SDK does not support the existing OS version.                                                                                                                                                               |
| ---------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **REINITIALIZATION\_NOT\_ALLOWED** | Reinitialization is not allowed while a Sentiance user exists, unless done across app restarts or after an SDK [reset](https://docs.sentiance.com/important-topics/sdk/api-reference/sentiance#reset).          |
| **EXCEPTION\_OR\_ERROR**           | An exception or an error occurred during initialization. See [InitializationResult#getThrowable()](https://docs.sentiance.com/important-topics/sdk/api-reference/android/initializationresult/..#getthrowable). |
| **SDK\_RESET\_IN\_PROGRESS**       | Cannot initialize the SDK while it's being reset. Wait for the the reset operation to complete first.                                                                                                           |