# SenderRequiredError

## ``autogen.SenderRequiredError``

```
SenderRequiredError(message='Sender is required but not provided.')
```

Bases: `Exception`

Exception raised when the sender is required but not provided.

Source code in `autogen/exception_utils.py`

|     |     |
| --- | --- |
| ```<br>40<br>41<br>42<br>``` | ```<br>def __init__(self, message: str = "Sender is required but not provided."):<br>    self.message = message<br>    super().__init__(self.message)<br>``` |

### ``message`instance-attribute``

```
message = message
```