ComfyUI Guides
Fix ComfyUI startup failures, missing packages, plugin errors, and dependency conflicts.
You can fix it manually, or download Wonderful Launcher for Windows to diagnose plugin errors, missing dependencies, and broken ComfyUI environments without reinstalling.
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Install ComfyUI easily
One-click setup with Wonderful Launcher handles Python, CUDA, and dependencies automatically.
Fix ComfyUI won't start
Diagnose and recover from startup failures, black screens, and crash loops.
Fix missing custom nodes
Resolve plugin import errors, red nodes, and broken custom node installations.
Fix dependency conflicts
Repair Python package conflicts without reinstalling everything.
Fix No module named errors
Start with the exact missing Python module, then verify the repair in the same ComfyUI environment.
Find model paths
Where to put checkpoints, LoRAs, VAEs, and other model files.
Diagnose any error
Systematic decision tree: is it a node, dependency, compatibility, or model issue?
Browse by Category
Getting Started
New to ComfyUI? Start here:
What is ComfyUI?
Overview of the node-based AI generation tool.
Install ComfyUI
Choose between Desktop, Portable, or Manual installation.
System Requirements
GPU, RAM, and storage requirements.
Your First Image
Generate your first AI image step by step.
Troubleshooting
Fix common problems:
Common Issues
Quick fixes for the most frequent problems.
Reconnecting Error
Fix the endless reconnecting loop.
GPU Compatibility
NVIDIA, AMD, and Intel GPU support.
Missing Packages
Fix Python import errors:
Torch Missing
Fix missing or broken PyTorch installation.
No Module Named Hub
Find specific ComfyUI ModuleNotFoundError fixes by package name.
OpenCV Missing
Fix cv2 / OpenCV import failures.
InsightFace Missing
Fix face detection module errors.
Models & Workflows
Work with AI models:
Download Models
Find and install checkpoints, LoRAs, and VAEs.
Text to Image
Complete guide to generating images from text prompts.
LoRA Guide
How to use, stack, and troubleshoot LoRA models.
Need Help?
Running into errors after manual repair? Try Wonderful Launcher. It can help preserve and diagnose broken ComfyUI environments without reinstalling everything.
You can fix it manually, or download Wonderful Launcher for Windows to diagnose plugin errors, missing dependencies, and broken ComfyUI environments without reinstalling.
Download free for WindowsYou can fix it manually, or download Wonderful Launcher for Windows to diagnose plugin errors, missing dependencies, and broken ComfyUI environments without reinstalling.
Download free for WindowsDid this fix your issue?
Your answer helps prioritize verified ComfyUI repairs.