Error2 reports
Fix NoCapableBackendError
in ComfyUI
✅ Solution
The "NoCapableBackendError" in ComfyUI often arises when attempting to use a specific hardware acceleration feature (like FP8) that isn't supported by your PyTorch installation or available hardware. Update your PyTorch installation to the latest version, ensuring it's compatible with your GPU (if applicable), and install any necessary drivers or libraries (like CUDA Toolkit) required for hardware acceleration. Alternatively, try disabling the problematic feature in your workflow or using a different implementation that doesn't rely on the unsupported backend.
Related Issues
Real GitHub issues where developers encountered this error:
Timeline
First reported:Jan 6, 2026
Last reported:Jan 6, 2026