da[0].save_uri_to_file TypeError

[Robert]

版本、环境信息

1）PaddleHub和PaddlePaddle版本：PaddleHub 2.2.0，PaddlePaddle 2.4.2
2）系统环境：win10，python 3.9
3）使用模型：disco_diffusion_ernievil_base

test.py代码内容（使用示例代码）:

import paddlehub as hub

module = hub.Module(name="disco_diffusion_ernievil_base")
text_prompts = ["孤舟蓑笠翁，独钓寒江雪。"]
da = module.generate_image(text_prompts=text_prompts, artist='齐白石', output_dir='./disco_diffusion_ernievil_base_out/')
da[0].save_uri_to_file('disco_diffusion_ernievil_base_out-result.png')

运行及报错内容：

╭─────────────────────────┬────────────────────────────────────────────────────────────╮
│ Argument │ Value │
├─────────────────────────┼────────────────────────────────────────────────────────────┤
│ batch_name │ │
│ batch_size │ 1 │
│ clamp_grad │ True │
│ clamp_max │ 0.05 │
│ clip_denoised │ False │
│ clip_guidance_scale │ 5000 │
│ clip_models │ ['vit_b_16x'] │
│ cut_ic_pow │ 1 │
│ cut_icgray_p │ [0.2]*400+[0]*600 │
│ cut_innercut │ [4]*400+[12]*600 │
│ cut_overview │ [12]*400+[4]*600 │
│ cutn_batches │ 4 │
│ diffusion_model │ 512x512_diffusion_uncond_finetune_008100 │
│ diffusion_sampling_mode │ ddim │
│ display_rate │ 10 │
│ eta │ 0.8 │
│ fuzzy_prompt │ False │
│ init_image │ None │
│ init_scale │ 1000 │
│ n_batches │ 1 │
│ name_docarray │ disco_diffusion_ernievil_base.reverse_diffusion-4153915605 │
│ output_dir │ ./disco_diffusion_ernievil_base_out/ │
│ perlin_init │ False │
│ perlin_mode │ mixed │
│ rand_mag │ 0.05 │
│ randomize_class │ True │
│ range_scale │ 0 │
│ sat_scale │ 0 │
│ seed │ 4153915605 │
│ skip_steps │ 0 │
│ steps │ 250 │
│ text_prompts │ ['孤舟蓑笠翁，独钓寒江雪，由齐白石所作'] │
│ tv_scale │ 0 │
│ use_secondary_model │ True │
│ width_height │ [1280, 768] │
╰─────────────────────────┴────────────────────────────────────────────────────────────╯
2023-08-07 12:42:21,510 - disco_diffusion_ernievil_base.reverse_diffusion - INFO - preparing models...
[2023-08-07 12:42:21,510] [ INFO] runner.py:33 - preparing models...
Setting up [LPIPS] perceptual loss: trunk [vgg], v[0.1], spatial [off]
Loading model from: D:\files\python_learn_aliyun\paddlehub2\paddlehub_py_3.9\lib\site-packages\paddle_lpips\weights\v0.1\vgg.pdparams
2023-08-07 12:42:46,164 - disco_diffusion_ernievil_base.reverse_diffusion - INFO - creating artwork...
[2023-08-07 12:42:46,164] [ INFO] runner.py:194 - creating artwork...
disco_diffusion_ernievil_base.reverse_diffusion-4153915605 Output()
0%| | 0/250 [07:50<?, ?it/s]
Traceback (most recent call last):
File "D:\files\python_learn_aliyun\paddlehub2\test.py", line 29, in
da[0].save_uri_to_file('disco_diffusion_ernievil_base_out-result.png')
TypeError: 'NoneType' object is not subscriptable