ComfyUI Error Report

### Feature Idea

# ComfyUI Error Report
## Error Details
- **Node ID:** N/A
- **Node Type:** N/A
- **Exception Type:** Prompt execution failed
- **Exception Message:** Prompt outputs failed validation:
CheckpointLoaderSimple:
- Value not in list: ckpt_name: 'v1-5-pruned-emaonly-fp16.safetensors' not in []
## Stack Trace
```
Error: Prompt execution failed
at ComfyApi.queuePrompt (http://127.0.0.1:8000/assets/index-azSeANjR.js:4:5485)
at async ComfyApp.queuePrompt (http://127.0.0.1:8000/assets/index-azSeANjR.js:253:17414)
at async Proxy.function (http://127.0.0.1:8000/assets/GraphView-CyYDa8uS.js:15:72634)
at async http://127.0.0.1:8000/assets/index-azSeANjR.js:62:267474
at async Proxy.execute (http://127.0.0.1:8000/assets/index-azSeANjR.js:62:286967)
at async queuePrompt (http://127.0.0.1:8000/assets/ComfyQueueButton-BH3dqSji.js:1:3164)
```
## System Information
- **ComfyUI Version:** 0.7.0
- **Arguments:** C:\Users\Ali\AppData\Local\Programs\ComfyUI\resources\ComfyUI\main.py --user-directory C:\Users\Ali\Documents\ComfyUI\user --input-directory C:\Users\Ali\Documents\ComfyUI\input --output-directory C:\Users\Ali\Documents\ComfyUI\output --front-end-root C:\Users\Ali\AppData\Local\Programs\ComfyUI\resources\ComfyUI\web_custom_versions\desktop_app --base-directory C:\Users\Ali\Documents\ComfyUI --extra-model-paths-config C:\Users\Ali\AppData\Roaming\ComfyUI\extra_models_config.yaml --log-stdout --listen 127.0.0.1 --port 8000 --enable-manager
- **OS:** win32
- **Python Version:** 3.12.11 (main, Aug 18 2025, 19:17:54) [MSC v.1944 64 bit (AMD64)]
- **Embedded Python:** false
- **PyTorch Version:** 2.8.0+cu129
## Devices

- **Name:** cuda:0 Quadro RTX 4000 : cudaMallocAsync
- **Type:** cuda
- **VRAM Total:** 8589606912
- **VRAM Free:** 7481589760
- **Torch VRAM Total:** 0
- **Torch VRAM Free:** 0

## Logs
```
2026-01-08T11:22:04.363811 - Adding extra search path custom_nodes C:\Users\Ali\Documents\ComfyUI\custom_nodes
2026-01-08T11:22:04.363811 - Adding extra search path download_model_base C:\Users\Ali\Documents\ComfyUI\models
2026-01-08T11:22:04.363811 - Adding extra search path custom_nodes C:\Users\Ali\AppData\Local\Programs\ComfyUI\resources\ComfyUI\custom_nodes
2026-01-08T11:22:04.363811 - Setting output directory to: C:\Users\Ali\Documents\ComfyUI\output
2026-01-08T11:22:04.363811 - Setting input directory to: C:\Users\Ali\Documents\ComfyUI\input
2026-01-08T11:22:04.363811 - Setting user directory to: C:\Users\Ali\Documents\ComfyUI\user
2026-01-08T11:22:04.542021 - [START] Security scan2026-01-08T11:22:04.542021 -
2026-01-08T11:22:05.558763 - [DONE] Security scan2026-01-08T11:22:05.558763 -
2026-01-08T11:22:05.558763 - ** ComfyUI startup time:2026-01-08T11:22:05.558763 - 2026-01-08T11:22:05.558763 - 2026-01-08 11:22:05.5582026-01-08T11:22:05.558763 -
2026-01-08T11:22:05.558763 - ** Platform:2026-01-08T11:22:05.558763 - 2026-01-08T11:22:05.558763 - Windows2026-01-08T11:22:05.558763 -
2026-01-08T11:22:05.558763 - ** Python version:2026-01-08T11:22:05.558763 - 2026-01-08T11:22:05.558763 - 3.12.11 (main, Aug 18 2025, 19:17:54) [MSC v.1944 64 bit (AMD64)]2026-01-08T11:22:05.558763 -
2026-01-08T11:22:05.558763 - ** Python executable:2026-01-08T11:22:05.558763 - 2026-01-08T11:22:05.558763 - C:\Users\Ali\Documents\ComfyUI\.venv\Scripts\python.exe2026-01-08T11:22:05.558763 -
2026-01-08T11:22:05.558763 - ** ComfyUI Path:2026-01-08T11:22:05.558763 - 2026-01-08T11:22:05.558763 - C:\Users\Ali\AppData\Local\Programs\ComfyUI\resources\ComfyUI2026-01-08T11:22:05.558763 -
2026-01-08T11:22:05.558763 - ** ComfyUI Base Folder Path:2026-01-08T11:22:05.558763 - 2026-01-08T11:22:05.558763 - C:\Users\Ali\AppData\Local\Programs\ComfyUI\resources\ComfyUI2026-01-08T11:22:05.558763 -
2026-01-08T11:22:05.558763 - ** User directory:2026-01-08T11:22:05.558763 - 2026-01-08T11:22:05.558763 - C:\Users\Ali\Documents\ComfyUI\user2026-01-08T11:22:05.558763 -
2026-01-08T11:22:05.558763 - ** ComfyUI-Manager config path:2026-01-08T11:22:05.558763 - 2026-01-08T11:22:05.558763 - C:\Users\Ali\Documents\ComfyUI\user\__manager\config.ini2026-01-08T11:22:05.558763 -
2026-01-08T11:22:05.558763 - ** Log path:2026-01-08T11:22:05.558763 - 2026-01-08T11:22:05.558763 - C:\Users\Ali\Documents\ComfyUI\user\comfyui.log2026-01-08T11:22:05.558763 -
2026-01-08T11:22:06.425547 - [ComfyUI-Manager] Skipped fixing the 'comfyui-frontend-package' dependency because the ComfyUI is outdated.
2026-01-08T11:22:06.425547 - [PRE] ComfyUI-Manager
2026-01-08T11:22:08.042109 - Checkpoint files will always be loaded safely.
2026-01-08T11:22:08.159259 - Total VRAM 8192 MB, total RAM 32480 MB
2026-01-08T11:22:08.160263 - pytorch version: 2.8.0+cu129
2026-01-08T11:22:08.160263 - Set vram state to: NORMAL_VRAM
2026-01-08T11:22:08.160263 - Device: cuda:0 Quadro RTX 4000 : cudaMallocAsync
2026-01-08T11:22:08.177492 - Using async weight offloading with 2 streams
2026-01-08T11:22:08.177492 - Enabled pinned memory 14616.0
2026-01-08T11:22:09.358590 - Using pytorch attention
2026-01-08T11:22:11.241993 - Python version: 3.12.11 (main, Aug 18 2025, 19:17:54) [MSC v.1944 64 bit (AMD64)]
2026-01-08T11:22:11.241993 - ComfyUI version: 0.7.0
2026-01-08T11:22:11.291916 - [Prompt Server] web root: C:\Users\Ali\AppData\Local\Programs\ComfyUI\resources\ComfyUI\web_custom_versions\desktop_app
2026-01-08T11:22:11.291916 - [START] ComfyUI-Manager
2026-01-08T11:22:11.525301 - [ComfyUI-Manager] network_mode: public
2026-01-08T11:22:11.533948 - [ComfyUI-Manager] The matrix sharing feature has been disabled because the `matrix-nio` dependency is not installed.
To use this feature, please run the following command:
C:\Users\Ali\Documents\ComfyUI\.venv\Scripts\python.exe -m pip install matrix-nio

2026-01-08T11:22:12.008601 - Total VRAM 8192 MB, total RAM 32480 MB
2026-01-08T11:22:12.008601 - pytorch version: 2.8.0+cu129
2026-01-08T11:22:12.008601 - Set vram state to: NORMAL_VRAM
2026-01-08T11:22:12.008601 - Device: cuda:0 Quadro RTX 4000 : cudaMallocAsync
2026-01-08T11:22:12.025044 - Using async weight offloading with 2 streams
2026-01-08T11:22:12.025044 - Enabled pinned memory 14616.0
2026-01-08T11:22:12.758587 -
Import times for custom nodes:
2026-01-08T11:22:12.758587 - 0.0 seconds: C:\Users\Ali\AppData\Local\Programs\ComfyUI\resources\ComfyUI\custom_nodes\websocket_image_save.py
2026-01-08T11:22:12.758587 -
2026-01-08T11:22:13.108570 - Failed to initialize database. Please ensure you have installed the latest requirements. If the error persists, please report this as in future the database will be required: (sqlite3.OperationalError) unable to open database file
(Background on this error at: https://sqlalche.me/e/20/e3q8)
2026-01-08T11:22:13.163090 - Starting server

2026-01-08T11:22:13.163090 - To see the GUI go to: http://127.0.0.1:8000
2026-01-08T11:22:14.491511 - comfyui-frontend-package not found in requirements.txt
2026-01-08T11:22:23.695680 - got prompt
2026-01-08T11:22:23.696712 - Failed to validate prompt for output 9:
2026-01-08T11:22:23.696712 - * CheckpointLoaderSimple 4:
2026-01-08T11:22:23.696712 - - Value not in list: ckpt_name: 'v1-5-pruned-emaonly-fp16.safetensors' not in []
2026-01-08T11:22:23.696712 - Output will be ignored
2026-01-08T11:22:23.696712 - invalid prompt: {'type': 'prompt_outputs_failed_validation', 'message': 'Prompt outputs failed validation', 'details': '', 'extra_info': {}}
2026-01-08T11:22:36.176984 - got prompt
2026-01-08T11:22:36.176984 - Failed to validate prompt for output 9:
2026-01-08T11:22:36.176984 - * CheckpointLoaderSimple 4:
2026-01-08T11:22:36.176984 - - Value not in list: ckpt_name: 'v1-5-pruned-emaonly-fp16.safetensors' not in []
2026-01-08T11:22:36.176984 - Output will be ignored
2026-01-08T11:22:36.176984 - invalid prompt: {'type': 'prompt_outputs_failed_validation', 'message': 'Prompt outputs failed validation', 'details': '', 'extra_info': {}}

```
## Attached Workflow
Please make sure that workflow does not contain any sensitive information such as API keys or passwords.
```
{"id":"ab40cfb7-c67d-4f01-9ee3-646d9676552e","revision":0,"last_node_id":9,"last_link_id":9,"nodes":[{"id":5,"type":"EmptyLatentImage","pos":[473,609],"size":[315,106],"flags":{},"order":0,"mode":0,"inputs":[{"localized_name":"width","name":"width","type":"INT","widget":{"name":"width"},"link":null},{"localized_name":"height","name":"height","type":"INT","widget":{"name":"height"},"link":null},{"localized_name":"batch_size","name":"batch_size","type":"INT","widget":{"name":"batch_size"},"link":null}],"outputs":[{"localized_name":"LATENT","name":"LATENT","type":"LATENT","slot_index":0,"links":[2]}],"properties":{"Node name for S&R":"EmptyLatentImage"},"widgets_values":[512,512,1]},{"id":8,"type":"VAEDecode","pos":[1209,188],"size":[210,46],"flags":{},"order":5,"mode":0,"inputs":[{"localized_name":"samples","name":"samples","type":"LATENT","link":7},{"localized_name":"vae","name":"vae","type":"VAE","link":8}],"outputs":[{"localized_name":"IMAGE","name":"IMAGE","type":"IMAGE","slot_index":0,"links":[9]}],"properties":{"Node name for S&R":"VAEDecode"},"widgets_values":[]},{"id":9,"type":"SaveImage","pos":[1451,189],"size":[210,58],"flags":{},"order":6,"mode":0,"inputs":[{"localized_name":"images","name":"images","type":"IMAGE","link":9},{"localized_name":"filename_prefix","name":"filename_prefix","type":"STRING","widget":{"name":"filename_prefix"},"link":null}],"outputs":[],"properties":{},"widgets_values":["ComfyUI"]},{"id":4,"type":"CheckpointLoaderSimple","pos":[-61,240],"size":[315,98],"flags":{},"order":1,"mode":0,"inputs":[{"localized_name":"ckpt_name","name":"ckpt_name","type":"COMBO","widget":{"name":"ckpt_name"},"link":null}],"outputs":[{"localized_name":"MODEL","name":"MODEL","type":"MODEL","slot_index":0,"links":[1]},{"localized_name":"CLIP","name":"CLIP","type":"CLIP","slot_index":1,"links":[3,5]},{"localized_name":"VAE","name":"VAE","type":"VAE","slot_index":2,"links":[8]}],"properties":{"Node name for S&R":"CheckpointLoaderSimple"},"widgets_values":["v1-5-pruned-emaonly-fp16.safetensors"]},{"id":3,"type":"KSampler","pos":[527,887],"size":[315,262],"flags":{},"order":4,"mode":0,"inputs":[{"localized_name":"model","name":"model","type":"MODEL","link":1},{"localized_name":"positive","name":"positive","type":"CONDITIONING","link":4},{"localized_name":"negative","name":"negative","type":"CONDITIONING","link":6},{"localized_name":"latent_image","name":"latent_image","type":"LATENT","link":2},{"localized_name":"seed","name":"seed","type":"INT","widget":{"name":"seed"},"link":null},{"localized_name":"steps","name":"steps","type":"INT","widget":{"name":"steps"},"link":null},{"localized_name":"cfg","name":"cfg","type":"FLOAT","widget":{"name":"cfg"},"link":null},{"localized_name":"sampler_name","name":"sampler_name","type":"COMBO","widget":{"name":"sampler_name"},"link":null},{"localized_name":"scheduler","name":"scheduler","type":"COMBO","widget":{"name":"scheduler"},"link":null},{"localized_name":"denoise","name":"denoise","type":"FLOAT","widget":{"name":"denoise"},"link":null}],"outputs":[{"localized_name":"LATENT","name":"LATENT","type":"LATENT","slot_index":0,"links":[7]}],"properties":{"Node name for S&R":"KSampler"},"widgets_values":[156680208700286,"randomize",20,8,"euler","normal",1]},{"id":6,"type":"CLIPTextEncode","pos":[415,186],"size":[422.84503173828125,164.31304931640625],"flags":{},"order":2,"mode":0,"inputs":[{"localized_name":"clip","name":"clip","type":"CLIP","link":3},{"localized_name":"text","name":"text","type":"STRING","widget":{"name":"text"},"link":null}],"outputs":[{"localized_name":"CONDITIONING","name":"CONDITIONING","type":"CONDITIONING","slot_index":0,"links":[4]}],"properties":{"Node name for S&R":"CLIPTextEncode"},"widgets_values":["beautiful scenery nature glass bottle landscape, , purple galaxy bottle,"]},{"id":7,"type":"CLIPTextEncode","pos":[413,389],"size":[425.27801513671875,180.6060791015625],"flags":{},"order":3,"mode":0,"inputs":[{"localized_name":"clip","name":"clip","type":"CLIP","link":5},{"localized_name":"text","name":"text","type":"STRING","widget":{"name":"text"},"link":null}],"outputs":[{"localized_name":"CONDITIONING","name":"CONDITIONING","type":"CONDITIONING","slot_index":0,"links":[6]}],"properties":{"Node name for S&R":"CLIPTextEncode"},"widgets_values":["text, watermark"]}],"links":[[1,4,0,3,0,"MODEL"],[2,5,0,3,3,"LATENT"],[3,4,1,6,0,"CLIP"],[4,6,0,3,1,"CONDITIONING"],[5,4,1,7,0,"CLIP"],[6,7,0,3,2,"CONDITIONING"],[7,3,0,8,0,"LATENT"],[8,4,2,8,1,"VAE"],[9,8,0,9,0,"IMAGE"]],"groups":[],"config":{},"extra":{"ds":{"scale":0.7513148009015777,"offset":[220.77700000000016,200.91700000000014]},"workflowRendererVersion":"LG"},"version":0.4}
```

## Additional Context
(Please add any additional context or steps to reproduce the error here)

### Existing Solutions

_No response_

### Other

_No response_