> For the complete documentation index, see [llms.txt](/llms.txt).

# Snaps known errors

Snaps can [communicate the following errors](/snaps/how-to/communicate-errors/) without crashing the Snap:

| Error                      | What the error indicates                                    | Error code |
| -------------------------- | ----------------------------------------------------------- | ---------- |
| `ChainDisconnectedError`   | The provider is disconnected from the requested chain.      | `4901`     |
| `DisconnectedError`        | The provider is disconnected.                               | `4900`     |
| `InternalError`            | An internal error has occurred.                             | `-32603`   |
| `InvalidInputError`        | The input to a method is invalid.                           | `-32000`   |
| `InvalidParamsError`       | The parameters to a method are invalid.                     | `-32602`   |
| `InvalidRequestError`      | The request is invalid.                                     | `-32600`   |
| `LimitExceededError`       | A limit has been exceeded.                                  | `-32005`   |
| `MethodNotFoundError`      | A method does not exist.                                    | `-32601`   |
| `MethodNotSupportedError`  | A method is not supported.                                  | `-32004`   |
| `ParseError`               | A request is not valid JSON.                                | `-32700`   |
| `ResourceNotFoundError`    | A resource does not exist.                                  | `-32001`   |
| `ResourceUnavailableError` | A resource is unavailable.                                  | `-32002`   |
| `TransactionRejected`      | A transaction has been rejected.                            | `-32003`   |
| `UnauthorizedError`        | The requested method/account is not authorized by the user. | `4100`     |
| `UnsupportedMethodError`   | The requested method is not supported by the provider.      | `4200`     |
| `UserRejectedRequestError` | The user has rejected the request.                          | `4001`     |