pointcloud_color_calculator.py重建彩色点云报错

你好作者！当我运行pointcloud_color_calculator.py重建彩色点云的时候，系统报错：

```
Traceback (most recent call last):
  File "./scripts/pointcloud_color_calculator.py", line 1, in <module>
    from colmap.read_write_model import \
ModuleNotFoundError: No module named 'colmap.read_write_model'
```

请问这是什么原因呢，是不是项目里面缺少了read_write_model.py文件？