自定义数据集，训练成功，在导出模型时失败了

uapi.base.utils.errors.CalledProcessError: Command ['/opt/conda/envs/python35-paddle120-env/bin/python', 'tools/export_model.py', '--for_fd', '-c', '/home/aistudio/.paddle_uapi/tmp8sx3cpbc/detmodel_PP-PicoDet_s_320_LCNet.yml', '--output_dir', '/home/aistudio/output/infer_model'] returned non-zero exit status 1.