n8n-io/n8n · error · NodeTypeNotFoundError

NODE_TYPE_NOT_FOUND

NODE_TYPE_NOT_FOUND

Error message

Node type "${nodeType}" not found

What it means

Error "Node type "${nodeType}" not found" thrown in n8n-io/n8n.

Source

Thrown at packages/@n8n/ai-workflow-builder.ee/src/tools/connect-nodes.tool.ts:118

							targetNodeId: validatedInput.targetNodeId,
							foundSource: !!matchedSourceNode,
							foundTarget: !!matchedTargetNode,
						},
					};
					reporter.error(error);
					return createErrorResponse(config, error);
				}

				// Find node type descriptions
				const sourceNodeType = nodeTypes.find((nt) => nt.name === matchedSourceNode!.type);
				const targetNodeType = nodeTypes.find((nt) => nt.name === matchedTargetNode!.type);

				if (!sourceNodeType || !targetNodeType) {
					const missingType = !sourceNodeType ? matchedSourceNode.type : matchedTargetNode.type;
					const typeError = new NodeTypeNotFoundError(missingType);
					const error = {
						message: typeError.message,
						code: 'NODE_TYPE_NOT_FOUND',
						details: {
							sourceType: matchedSourceNode.type,
							targetType: matchedTargetNode.type,
						},
					};
					reporter.error(error);
					return createErrorResponse(config, error);
				}

				// Determine connection type
				reportProgress(reporter, 'Inferring connection type...');

				logger?.debug('\n=== Connect Nodes Tool ===');
				logger?.debug(
					`Attempting to connect: ${matchedSourceNode.name} -> ${matchedTargetNode.name}`,
				);

				const inferResult = inferConnectionType(

View on GitHub (pinned to 5ac6606e81)

When it happens

Trigger: Thrown at packages/@n8n/ai-workflow-builder.ee/src/tools/connect-nodes.tool.ts:118 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of n8n-io/n8n@5ac6606e81 (2026-08-12). Data as JSON: /api/errors/611132db514d74f3. Report an issue: GitHub.