Guides

After execution, identify which nodes produced results and where those results reside. Node IDs, prompt IDs and filenames are different identifiers.

The last line of a screenshot rarely identifies the instance, input and first exception. Preserve a complete local record and share a deliberate redacted report.

This guide concerns an instance you own or are authorized to use. ComfyUI's native HTTP API is distinct from this site's knowledge MCP and does not authorize access to third-party services.

Start with one compatible LoRA and a controlled comparison. A populated selector does not establish that the sampling path uses the modified weights.

A model name can cover bundled checkpoints, split weights, quantized variants, text encoders and VAEs. Preserve enough identity information to know which artifact a workflow actually used.

Supported extra_model_paths configuration can reference existing model storage. It does not share Python environments, node registration or workflow versions.

Recovering old code does not automatically restore Python packages, frontend, nodes or configuration. Establish recovery information for the whole relevant environment.

Downloading a repository is only one step. Identify the owning package, satisfy its dependencies and confirm that the running backend actually registers the required class.

Portable contains its own Python and ComfyUI directories. Installing into system Python does not automatically make those packages available to its embedded interpreter.

Plan around the supported interpreter, device backend and a separate working directory, not a single pip command for every machine. Desktop and Portable users should follow their own installation paths instead.