temp\hallo_dolgq.mp4 could not be loaded with cv.

[welkin159]

I didn't see the requirement to install cv in the requirements file, but I did see the requirement to install av. However, the final error is related to cv. How can I resolve this issue?

Error occurred when executing D_HalloNode:

F:\ComfyUI-aki-v1.3\temp\hallo_dolgq.mp4 could not be loaded with cv.

File "F:\ComfyUI-aki-v1.3\execution.py", line 317, in execute
output_data, output_ui, has_subgraph = get_output_data(obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
File "F:\ComfyUI-aki-v1.3\execution.py", line 192, in get_output_data
return_values = _map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
File "F:\ComfyUI-aki-v1.3\execution.py", line 169, in _map_node_over_list
process_inputs(input_dict, i)
File "F:\ComfyUI-aki-v1.3\execution.py", line 158, in process_inputs
results.append(getattr(obj, func)(**inputs))
File "F:\ComfyUI-aki-v1.3\custom_nodes\ComfyUI_Hallo\nodes.py", line 174, in inference
(width, height, target_frame_time) = next(gen)
File "F:\ComfyUI-aki-v1.3\custom_nodes\ComfyUI_Hallo\nodes.py", line 36, in cv_frame_generator
raise ValueError(f"{video} could not be loaded with cv.")

[motoyagugu]

Same problem.
Error occurred when executing D_HalloNode:

F:\ComfyUI\temp\hallo_ohove.mp4 could not be loaded with cv.

File "F:\comfyui\execution.py", line 317, in execute
output_data, output_ui, has_subgraph = get_output_data(obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
File "F:\comfyui\execution.py", line 192, in get_output_data
return_values = _map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
File "F:\comfyui\execution.py", line 169, in _map_node_over_list
process_inputs(input_dict, i)
File "F:\comfyui\execution.py", line 158, in process_inputs
results.append(getattr(obj, func)(**inputs))
File "F:\ComfyUI\custom_nodes\ComfyUI_Hallo\nodes.py", line 174, in inference
(width, height, target_frame_time) = next(gen)
File "F:\ComfyUI\custom_nodes\ComfyUI_Hallo\nodes.py", line 36, in cv_frame_generator
raise ValueError(f"{video} could not be loaded with cv.")

[ZWill88]

Same issue:

ComfyUI Error Report

Error Details

• Node Type: D_HalloNode
• Exception Type: ValueError
• Exception Message: D:\ComfyUI-aki-v1.1\temp\hallo_tzlet.mp4 could not be loaded with cv.

Stack Trace

  File "D:\ComfyUI-aki-v1.1\execution.py", line 317, in execute
    output_data, output_ui, has_subgraph = get_output_data(obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)

  File "D:\ComfyUI-aki-v1.1\execution.py", line 192, in get_output_data
    return_values = _map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)

  File "D:\ComfyUI-aki-v1.1\execution.py", line 169, in _map_node_over_list
    process_inputs(input_dict, i)

  File "D:\ComfyUI-aki-v1.1\execution.py", line 158, in process_inputs
    results.append(getattr(obj, func)(**inputs))

  File "D:\ComfyUI-aki-v1.1\custom_nodes\ComfyUI_Hallo\nodes.py", line 174, in inference
    (width, height, target_frame_time) = next(gen)

  File "D:\ComfyUI-aki-v1.1\custom_nodes\ComfyUI_Hallo\nodes.py", line 36, in cv_frame_generator
    raise ValueError(f"{video} could not be loaded with cv.")

System Information

• ComfyUI Version: v0.1.3-23-gbaa6b4d
• Arguments: D:\ComfyUI-aki-v1.1\main.py --auto-launch --preview-method auto --disable-cuda-malloc
• OS: nt
• Python Version: 3.10.11 (tags/v3.10.11:7d4cc5a, Apr 5 2023, 00:38:17) [MSC v.1929 64 bit (AMD64)]
• Embedded Python: false
• PyTorch Version: 2.2.2+cu121

[hay86]

Sorry guys, I did not meet with the similar issues. I will recommend you to try following steps to see if the problem can be resolved.

1. make sure ffmpeg is installed and updated to latest version
2. make sure opencv-python is installed and updated to latest version
3. make sure you have the write permission in ...\ComfyUI\temp folder
4. remove the ...\ComfyUI\temp\hallo_xxxx.mp4 and retry

[JiangYi07]

Sorry guys, I did not meet with the similar issues. I will recommend you to try following steps to see if the problem can be resolved.

1. make sure ffmpeg is installed and updated to latest version
2. make sure opencv-python is installed and updated to latest version
3. make sure you have the write permission in ...\ComfyUI\temp folder
4. remove the ...\ComfyUI\temp\hallo_xxxx.mp4 and retry

There is no mp4 file in temp folder.

[JiangYi07]

Guys，I have solved this problem.
On Windows, 'PythonPath' cannot be recognized as a command. So I delete the 'PythonPath', and add root dir in inference.py.Then the codes in inference.py can be called by nodes.py.
In addition, I update moviepy and diffusers. Finally, the 'hallo_xxxx.mp4' can be generated.
It means there is more than one reason can cause this problem, so you have to check the console output instead of the error info on the ComfyUI webpage.

[Darienxccs]

Guys，I have solved this problem. On Windows, 'PythonPath' cannot be recognized as a command. So I delete the 'PythonPath', and add root dir in inference.py.Then the codes in inference.py can be called by nodes.py. In addition, I update moviepy and diffusers. Finally, the 'hallo_xxxx.mp4' can be generated. It means there is more than one reason can cause this problem, so you have to check the console output instead of the error info on the ComfyUI webpage.

Can you explain that process?, where is located those files?

[JiangYi07]

Guys，I have solved this problem. On Windows, 'PythonPath' cannot be recognized as a command. So I delete the 'PythonPath', and add root dir in inference.py.Then the codes in inference.py can be called by nodes.py. In addition, I update moviepy and diffusers. Finally, the 'hallo_xxxx.mp4' can be generated. It means there is more than one reason can cause this problem, so you have to check the console output instead of the error info on the ComfyUI webpage.

Can you explain that process?, where is located those files?

'cmd = '''PythonPath = {env} python inference.py ...'''' in nodes.py.
You can ask gpt how to use cmd to call another python file on Windows.

[GonDesign]

Error occurred when executing D_HalloNode:

D:\ComfyUi\echo+live\ComfyUI_windows_portable\ComfyUI\temp\hallo_ghshv.mp4 could not be loaded with cv.

File "D:\ComfyUi\echo+live\ComfyUI_windows_portable\ComfyUI\execution.py", line 151, in recursive_execute
output_data, output_ui = get_output_data(obj, input_data_all)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\ComfyUi\echo+live\ComfyUI_windows_portable\ComfyUI\execution.py", line 81, in get_output_data
return_values = map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\ComfyUi\echo+live\ComfyUI_windows_portable\ComfyUI\execution.py", line 74, in map_node_over_list
results.append(getattr(obj, func)(**slice_dict(input_data_all, i)))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\ComfyUi\echo+live\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_Hallo\nodes.py", line 174, in inference
(width, height, target_frame_time) = next(gen)
^^^^^^^^^
File "D:\ComfyUi\echo+live\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_Hallo\nodes.py", line 36, in cv_frame_generator
raise ValueError(f"{video} could not be loaded with cv.")

[GonDesign]

大家好，我解决了这个问题。 在 Windows 上，'PythonPath' 无法被识别为命令。所以我删除了 'PythonPath'，并在 inference.py 中添加了根目录。然后 inference.py 中的代码就可以被 nodes.py 调用了。 此外，我更新了 moviepy 和 diffusers。最后，'hallo_xxxx.mp4' 可以生成了。 这意味着导致此问题的原因不止一个，所以你必须检查控制台输出，而不是 ComfyUI 网页上的错误信息。

Could you please send me the code in your modified node.py file? Thanks

[JeffreyBull76]

Same problem here as @GonDesign:

FFmpeg is installed and working, all models downloaded, I have the correct file permissions (as it creates the base image and video files in the temp folder when I run it) but it just errors out. I have got this working in Pinokio/gradio so its not my PC but an issue inside comfyui with this implementation.

I am running the portable version of comfyui if that makes any difference

---

File "D:\SDInstalls\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\ComfyUI\execution.py", line 317, in execute
output_data, output_ui, has_subgraph = get_output_data(obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\SDInstalls\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\ComfyUI\execution.py", line 192, in get_output_data
return_values = _map_node_over_list(obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\SDInstalls\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\ComfyUI\execution.py", line 169, in _map_node_over_list
process_inputs(input_dict, i)
File "D:\SDInstalls\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\ComfyUI\execution.py", line 158, in process_inputs
results.append(getattr(obj, func)(**inputs))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "D:\SDInstalls\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_Hallo\nodes.py", line 174, in inference
(width, height, target_frame_time) = next(gen)
^^^^^^^^^
File "D:\SDInstalls\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\ComfyUI\custom_nodes\ComfyUI_Hallo\nodes.py", line 36, in cv_frame_generator
raise ValueError(f"{video} could not be loaded with cv.")
ValueError: D:\SDInstalls\ComfyUI_windows_portable_nvidia\ComfyUI_windows_portable\ComfyUI\temp\hallo_eeasy.mp4 could not be loaded with cv.

Prompt executed in 0.75 seconds

`

[ehecatl]

SOLVED ON WINDOWS

If you're encountering the error temp\hallo_XXXXX.mp4 could not be loaded with cv with the Hallo Node in ComfyUI on Windows, follow these steps to fix it. This issue occurs due to Windows not properly handling the PYTHONPATH environment variable, which prevents the video from being generated correctly.

Step 1: Locate Your Files

First, identify the location of your files. Typical paths are:

ComfyUI folder: C:\your_path\ComfyUI
Hallo Node folder: C:\your_path\ComfyUI\custom_nodes\ComfyUI_Hallo

Step 2: Update nodes.py

Navigate to ComfyUI\custom_nodes\ComfyUI_Hallo\nodes.py and locate the inference method in the HalloNode class.
Find this code section (around line 170-180):

# Old code
env = ':'.join([os.environ.get('PYTHONPATH', ''), cur_dir])
cmd = f"""PYTHONPATH={env} python {infer_py} --config "{tmp_yaml_path}" ..."""

Replace it with:

# Add current directory to Python path
import sys
if cur_dir not in sys.path:
    sys.path.append(cur_dir)

# Modified command to use Windows-style PYTHONPATH setting
cmd = f"""set PYTHONPATH={cur_dir} && python {infer_py} --config "{tmp_yaml_path}" --source_image "{src_img_path}" --driving_audio "{src_audio_path}" --output {output_video_path} --pose_weight {pose_weight} --face_weight {face_weight} --lip_weight {lip_weight} --face_expand_ratio {face_expand_ratio}"""