ErrorComfyUI

254aeb44-281a-473e-86a8-d51e86f3713f

Queued: Aug 14, 2026, 07:30 PM
Completed: Aug 14, 2026, 07:30 PM
Execution time: 31 ms
Outputs: 0 · 0 B
Inputs: 0
Cached nodes: —

Failure

ValueErrorin Comfyui-Kling-Wrapper Preview Video (node 99)

PreviewVideo received an empty video_url. The upstream node finished without a downloadable video URL.

Stack trace

  File "/home/ec2-user/ComfyUI/execution.py", line 542, in execute
    output_data, output_ui, has_subgraph, has_pending_tasks = await get_output_data(prompt_id, unique_id, obj, input_data_all, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
                                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ec2-user/ComfyUI/execution.py", line 341, in get_output_data
    return_values = await _async_map_node_over_list(prompt_id, unique_id, obj, input_data_all, obj.FUNCTION, allow_interrupt=True, execution_block_cb=execution_block_cb, pre_execute_cb=pre_execute_cb, v3_data=v3_data)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/ec2-user/ComfyUI/execution.py", line 315, in _async_map_node_over_list
    await process_inputs(input_dict, i)
  File "/home/ec2-user/ComfyUI/execution.py", line 303, in process_inputs
    result = f(**inputs)
             ^^^^^^^^^^^
  File "/home/ec2-user/ComfyUI/custom_nodes/Comfyui-Kling-Wrapper/py/nodes.py", line 2263, in run
    raise ValueError(

Outputs

The run failed before producing any output.

Text prompts

Promptnode 2 · SeedanceV2Video · prompt

Continue from the uploaded reference frame. Same face.

Input media

This run had no input media — it generated from prompts alone.