## ✅ ComfyUI CUDA Error Analysis & Final Resolution Summary (MARKONE Version)

### 🎯 Objective

Resolve the error:

"CUDA error: no kernel image is available for execution on the device"

that occurs when running ComfyUI on RTX 5070 Ti (Ada Lovelace / Compute 12.0)

## 🧩 1. Problem Diagnosis (Initial Attempts)

### [1] GPU & Environment

• GPU: NVIDIA GeForce RTX 5070 Ti*
• CUDA Compute Capability: (12, 0)*
• Issue: Official PyTorch builds did not yet support sm_120*, leading to kernel execution failures.

### [2] PyTorch Reinstallation Attempts

• Versions tested:

• 2.5.1+cu121, 2.2.2+cu121, and Nightly builds

• Installation command example:

pip install --pre torch torchvision torchaudio --index-url ...

• Result: All builds failed with the same error due to sm_120 not supported*.

### [3] Execution Parameter Tweaks