# addError method

void addError (Object error, [ StackTrace stackTrace ])

Passes the error to the target consumer as an error event.

This function must not be called when a stream is currently being added using addStream.

This operation is non-blocking. See flush or done for how to get any errors generated by this call.

## Implementation

    void addError(error, [StackTrace stackTrace]) {
      _sink.addError(error, stackTrace);
    }