n8n-io/n8n
Documented errors, page 4 of 11. Back to n8n-io/n8n
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| Value " " is not a number. | exception | error | typeorm, increment, validation, api-misuse |
| Binary property name or download URL is required | exception | error | google-gemini, binary, file-upload, validation, node-operation-error |
| Failed to parse output | exception | error | guardrails, llm, output-parsing, langchain |
| Filter operator " " on key " " requires all array elements… | exception | error | qdrant, filter, validation, vector-store, type-mismatch |
| Metadata is required | exception | error | openai, conversation, missing-metadata, validation, v2 |
| Assistant SDK error | exception | error | |
| Failed to sanitize text | exception | error | guardrails, sanitize, pii, node-operation |
| Manual thinking mode is not supported on | exception | error | anthropic, llm, model-capability, configuration |
| MCP tool " " from has an invalid name | validation | warning | mcp, validation, naming, tool-registry |
| No exact match found for str_replace. The old_str content… | exception | error | |
| Unknown model discovery provider | exception | error | model-discovery, providers, validation, ai-utilities |
| Unsupported syntax: ' ' is not allowed in SDK code | exception | error | workflow-sdk, ast-interpreter, validation, sandbox, security |
| Failed to convert to Langchain content block | exception | error | converters, langchain, content-blocks, messages |
| Max payload size of bytes exceeds pipe message limit of… | validation | error | task-runner, python, configuration, payload-size, ipc, startup |
| SSL Issue: consider using the 'Ignore SSL issues' option | exception | error | ssl, tls, certificate, http, nodes, backend-network |
| SSO is enabled, so users are managed by the Identity… | exception | warning | invitations, sso, saml, rest-api, config |
| Transaction commit failed | exception | error | database, transaction, sqlite |
| Cannot create relation id map for a single value because… | exception | error | composite-key, foreign-key, relation, runtime |
| merge(): expected array arg, e.g. .merge | exception | error | expression-runtime, array-extensions, merge, argument-validation |
| select cases to push: pass <slugs...>, --changed, --filter… | exception | error | cli, validation, argument-parsing, langtracer-push |
| --source must be "disk" or "langtracer" | exception | error | cli, argument-validation, instance-ai, mcp-manifest |
| Wildcard '*' in must be used alone, not with other modules… | validation | error | task-runner, python, configuration, allowlist, security |
| Invalid credentials for provider | exception | error | model-config, credentials, zod-validation, provider, security |
| --max-attempts must be >= 1 | exception | error | cli, validation, argument-parsing, build-mcp-manifest |
| Model is not supported for image generation | exception | error | google-gemini, model-id, image-generation, validation, node-operation-error |
| ' ' declarations are not allowed. Use 'const' only. | exception | error | workflow-sdk, ast-interpreter, validation, sandbox, security |
| Plan lacks license for this feature | http | warning | api, license, rest, authorization, user-error |
| The “text” parameter is empty. | exception | error | langchain, agent, tools-agent, prompt, dead-code |
| Cannot connect to ChromaDB. Please ensure ChromaDB is… | exception | error | chromadb, vector-store, network, connection-error, node-api-error, langchain |
| cannot convert to Luxon DateTime | exception | error | expression, string, date, format, parsing |
| Could not find the folder | exception | warning | folders, rest, not-found, projects |
| cte.options.columnNames length | exception | error | query-builder, cte, validation |
| OpenTelemetry active span callback is required. | exception | error | opentelemetry, tracer, telemetry, misuse |
| Relation # and # both has cascade remove set. This may lead… | exception | error | typeorm, relations, cascade, schema-validation, one-to-one |
| Request to delete a user failed because the user to delete… | exception | error | users, delete, ownership-transfer, rest-api, bad-request |
| Webhook URL cannot target internal hostname | exception | error | webhook, ssrf, security, validation, dns |
| --build-cwd directory does not exist | exception | error | cli, filesystem, path, validation, build-mcp-manifest |
| Can't migrate workflows and credentials to the user with… | exception | error | cli, ldap, ownership-transfer, user-error |
| forgotPassword.ldapUserPasswordResetUnavailable | exception | warning | ldap, sso, auth, password-reset, license |
| Function parameter isn't supported in the parameters… | exception | error | query-builder, parameters, validation |
| user may not change their profile information | exception | warning | me, profile, sso, saml, rest-api |
| User is missing a scope required to perform this action | http | warning | api, rbac, rest, authorization, user-error |
| Webhook URL must use HTTPS. Got | exception | error | webhook, ssrf, security, validation, tls |
| Custom repository was not found. Did you forgot to put… | exception | error | typeorm, custom-repository, decorators, metadata |
| error.message | http | warning | binary-data, rest, bad-request, validation |
| Failed to delete of objects | exception | error | s3, blob-storage, batch-delete, iam, partial-failure |
| --set-kind must be "regression" or "capability_gap" | exception | error | cli, validation, argument-parsing, langtracer-push |
| case(s) did not round-trip: the fields above were sent but… | exception | error | eval, langtracer, version-mismatch, round-trip |
| Tool name " " is reserved for SDK built-in tools | exception | error | tools, naming, reserved, sdk-builtin |
| Error executing tool | exception | error | tool-executor, error-wrapping, catch-all, langchain |
| Failed to decode base64 attachment data | exception | error | base64, attachment-parsing, unreachable, buffer |
| Failed to find workflow with ID | exception | warning | activation, workflow, database, not-found |
| Error | exception | error | microsoft, bot-framework, oauth, graph-api, azure-ad, api-error, node-operation-error |
| Graceful shutdown timeout must be positive, got | validation | error | task-runner, python, configuration, timeout, shutdown, startup |
| No scenarios match --tier | exception | warning | cli, validation, scenarios, tier, build-mcp-manifest |
| Please connect a model to the Fallback Model input or… | validation | error | microsoft, langchain, agent, ai-model, fallback, validation, node-operation-error |
| The ‘prompt’ parameter is empty. | exception | error | langchain, agent, prompt, configuration, sql |
| This tool is only available when running inside the n8n… | exception | error | credential, gateway-context, secrets-buffer, initialization |
| Tool " " has .resume() but missing .suspend() | exception | error | tool, builder, validation, suspend-resume, human-in-the-loop |
| Unknown agents module | validation | error | config, validation, agents, env, startup |
| Failed to retrieve API Key | exception | error | azure, openai, credentials, wrapping, operational |
| File not found | exception | error | filesystem, daytona, not-found, agents |
| scheduled_job has unknown misfire policy | exception | critical | scheduler, database, version-mismatch, corruption |
| " " is not part of this query | exception | error | typeorm, locking, find-options, pessimistic |
| Task subprocess exited with code -1 | exception | critical | task-runner, python, subprocess, infrastructure, runtime-error |
| Tool message is missing a tool-result content block | exception | error | converters, langchain, tool-calls, messages |
| Cannot invite admin user without advanced permissions… | exception | warning | invitations, license, rbac, admin, forbidden |
| Tool name " " is reserved for runtime skills | exception | error | naming, reserved, skills, tools, configuration |
| Unsupported syntax: ' : ' is not allowed in SDK code | exception | error | sdk, validators, forbidden-syntax, unsupported-syntax |
| Video generation task was canceled | exception | warning | video-generation, async-task, polling, alibabacloud, dashscope, canceled |
| Webhook URL hostname resolves to a private/internal IP… | exception | error | webhook, ssrf, security, dns, dns-rebinding |
| intersection(): expected array arg, e.g. .intersection([1… | exception | error | expression, array, validation, argument-shape |
| No fire of cron expression | validation | error | scheduler, recurrence, loop-safety, configuration |
| Sandbox " " failed to start (status: ) | exception | error | sandbox, lifecycle, state-machine, agents |
SDK_REPEATED_BRANCH_WIRING Repeated `. ()` ( times) — each call overwrites the previous target. Wire once… | error_code | warning | lint, sdk, branching, builder, validation |
| Unsupported attachment type | exception | error | mime-type, attachment-parsing, validation, typed-error |
| Filter operator " " on key " " requires array elements to… | validation | error | vector-store, filter, validation, type-mismatch, array |
| No tool call found for toolCallId | exception | error | http-request, xml, soap, body, content-type |
| Operation not supported: dialog | exception | warning | mcp-browser, agent-browser, unsupported, dialog, capability |
| topK must be an integer >= 1, got | validation | error | vector-store, validation, sdk |
| Cannot access " " due to security concerns | exception | error | |
| HTML " " contains no extractable text. | exception | error | |
| Model output doesn't fit required format | exception | error | llm-output, parsing, schema, information-extractor, batch |
NODE_TYPE_NOT_FOUND Node type " " not found | error_code | error | |
| Operation not supported: drag | exception | warning | mcp-browser, agent-browser, unsupported, drag, capability |
| Reflector field " " must be an array | exception | error | llm-output-validation, observation-log, json-parsing, reflection |
| arguments must be passed to pluck | exception | error | expression-runtime, array-extensions, pluck, argument-validation |
| Cannot create " ". Only is supported. | validation | error | |
| Cannot set both .tracer() and .otlpEndpoint() — use one or… | exception | error | telemetry, configuration, opentelemetry, mutually-exclusive |
CONNECTION_TYPE_INFERENCE_ERROR ${inferResult.error} | error_code | error | |
| Failed to create video task | exception | error | minimax, video-generation, i2v, api-error, task-creation |
| Sub-agent tool requires confirmation but no HITL handler is… | exception | error | hitl, configuration, programming-error, sub-agent, guard |
| workflow() requires (id: string, name: string). workflow()… | exception | error | workflow-builder, validation, typeerror, factory |
| Additional Model Request Fields must be valid JSON | validation | warning | bedrock, embeddings, json, configuration, user-input |
| API url is required to use Zep Open Source | exception | error | |
| Conversational Agent requires Chat Model | exception | error | agent, conversational-agent, chat-model, langchain |
| docx " " contains no extractable text. | exception | error | |
| Junction property is not defined. | exception | error | query-builder, join, junction, internal |
| Mime type doesn't match selected loader. Please select… | validation | error | |
| Nodes from fromJSON() do not support onError() | exception | error | workflow-builder, fromjson, import, error-handling |