flutter - flutter_map 参数 'source' 是必需的

Question

我已将我的 flutter_map 包更新为最新更新，并收到以下警告：

void _increaseZoom() {
    final zoom = widget.mapState.zoom + 1;
    widget.mapState.move(widget.mapState.center, zoom); The parameter 'source' is required.
  }

  void _decreaseZoom() {
    final zoom = widget.mapState.zoom - 1;
    widget.mapState.move(widget.mapState.center, zoom); The parameter 'source' is required.
  }