（一）报错原因：

不能识别GBK

（二）解决方法

定位报错代码：

def cfg_from_file(filename):
    """Load a config file and merge it into the default options."""
    import yaml
    with open(filename, 'r') as f:
        yaml_cfg = edict(yaml.full_load(f))

    _merge_a_into_b(yaml_cfg, __C)

修改代码如下：

def cfg_from_file(filename):
    """Load a config file and merge it into the default options."""
    import yaml
    with open(filename, 'r', encoding='UTF-8') as f:
        yaml_cfg = edict(yaml.full_load(f))

    _merge_a_into_b(yaml_cfg, __C)