ErrLookup › bytedance/deer-flow
bytedance/deer-flow
An open-source long-horizon SuperAgent harness that researches, codes, and creates. With the help of sandboxes, memories, tools, skill, subagents and message gateway, it handles different levels of tasks that could take minutes to hours. · Python · 1,035 source files
Analyzed at 1dd6ba1acb on 2026-08-14. 451 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| memory.manager_class= | validation | critical | memory, configuration, startup, backend, deerflow |
| honcho memory recall failed | exception | error | honcho, memory, network, runtime, fail-closed |
| import_memory not supported by | exception | error | memory, not-implemented, backend, deerflow |
| Thread not found | http | error | auth, http-404, authorization, ownership, threads, gateway |
| create_fact not supported by | exception | error | memory, not-implemented, crud, deerflow |
| Agent ' ' only exists in the legacy shared layout and is… | http | error | http-409, agents, migration, legacy-layout, user-isolation |
| Too many pending channel connection codes. Wait for… | http | warning | channels, rate-limit, http-429, throttling |
| Failed to install Lark integration. | http | error | lark, feishu, integration, http-500, install, gateway |
| OpenViking health check returned an unhealthy response | exception | critical | openviking, health-check, startup, memory |
| result.message | exception | critical | config, nextjs, server-render, gateway |
| Unknown channel provider | http | warning | channels, validation, http-404, provider |
| Honcho backend: [ ] has an empty value; remove the entry or… | validation | error | config, honcho, memory, yaml, validation |
| Missing code or state parameter | http | warning | sso, oidc, validation, http-400, proxy |
| Your email could not be verified by the identity provider… | http | error | auth, oidc, sso, http-403, user-provisioning |
| reload_memory not supported by | exception | warning | memory, not-implemented, cache, deerflow |
| (session= ) | exception | error | openviking, memory, write-failure, error-handling |
| Authentication required | http | error | auth, channels, http-401 |
| mem0 backend_config has unknown keys | validation | error | config, mem0, memory, validation, yaml |
| Failed to delete local thread data. | http | error | threads, filesystem, permissions, http-500, delete |
| Honcho backend: api_key over plain http requires… | validation | error | security, config, honcho, http, memory |
| Webhook signature verification not configured. Set | http | error | http-503, webhooks, configuration, secrets, github |
| backend_config.storage_class= | validation | critical | memory, configuration, dynamic-import, fail-fast, deermem |
| Failed to persist JWT secret to | console | critical | auth, jwt, permissions, deployment, persistence |
| Failed to update global memory summaries | exception | error | memory, concurrency, optimistic-locking, deermem |
| update_fact not supported by | exception | error | memory, not-implemented, crud, deerflow |
| Legacy summary migration conflict in ; the legacy file was… | exception | critical | deermem, memory, migration, data-corruption |
| OpenViking capture cursor is unreadable; refusing unsafe… | exception | error | openviking, memory, corruption, filesystem |
| agent_storage.backend='db' requires database.backend to be… | console | critical | config, startup, agent-storage, database, system-exit, gateway |
| Checkpoint is missing checkpoint_id | http | error | checkpoint, langgraph, regenerate, http-409 |
| Duplicate fact | validation | warning | memory, deduplication, business-rule, deermem |
| Failed to resolve slash skill command. Please check the… | exception | error | skills, channels, config, im |
| Failed to update MCP server state | http | error | mcp, config, patch, http-500 |
| Invalid JSON body | http | warning | http-400, webhooks, json, content-type, github |
| clear_memory not supported by | exception | error | memory, not-implemented, data-deletion, backend |
| The installed OpenViking SDK lacks request-scoped… | exception | error | openviking, version-conflict, dependencies, import |
| OpenViking memory write requires thread_id | validation | error | openviking, memory, thread-id, validation |
| Failed to update MCP configuration | http | error | mcp, config, http-500, filesystem |
| scheduler.multi_instance=true requires… | console | critical | config, startup, scheduler, run-ownership, heartbeat, system-exit, gateway |
| Existing migration backup | exception | critical | deermem, memory, migration, backup |
| Failed to get Lark integration status. | http | error | http-500, integrations, lark, feishu, status-check |
| Failed to read JWT secret from | console | critical | auth, jwt, permissions, deployment |
| GATEWAY_WORKERS= cannot enable agentic browser tools… | console | critical | config, startup, browser-tools, workers, scaling, system-exit, gateway |
| OpenViking capture cursor is invalid; refusing unsafe replay | exception | error | openviking, memory, corruption, state-file |
| not available | http | error | http-503, lifespan, startup, dependency-injection, gateway |
| Configuration not available | http | error | config, yaml, http-503, gateway, hot-reload |
| Failed to load configuration during gateway startup | console | critical | gateway, config, startup, critical |
| memory mode='tool' requires a backend that implements… | validation | error | memory, tool-mode, validation, backend |
| setup-status failed | exception | critical | auth, setup, http, routing, frontend |
| Failed to compact context. | exception | error | threads, compaction, http, frontend |
| OpenViking USER API key is bound to DeerFlow owner_user_id | exception | critical | openviking, auth, multi-user, memory |
| No context selected | exception | warning | sidecar, ui, react, validation |
| delete_fact not supported by | exception | error | memory, not-implemented, crud, deerflow |
| MCP server ' ' uses disallowed stdio command ' '. Allowed… | http | error | mcp, stdio, security, allowlist, http-400 |
| Browser automation is not enabled | http | error | browser, config, feature-flag, http-404 |
unsupported_run_option Run option ' ' is not supported by DeerFlow | validation | warning | runs, http-422, validation, langgraph-compat |
| memory_data.facts must contain only fact objects | validation | error | memory, validation, deermem, python |
| The Buzz channel requires the 'buzz' extra: run `uv sync… | exception | error | buzz, dependencies, nostr, python |
| Thread history returned an invalid response. | validation | error | threads, validation, schema, type-guard, frontend |
| Failed to clear memory data. | http | error | memory, filesystem, permissions, http-500 |
| GATEWAY_WORKERS= requires run_events.backend='db', but… | console | critical | config, startup, run-events, workers, exactly-once, system-exit, gateway |
| guaranteed_categories must be an iterable of strings, not a… | exception | error | typing, deermem, memory, prompt, typeerror |
| HTTP | http | error | network, http, goal, composer |
| Thread requires delta mode; materialize and convert its… | exception | error | checkpoints, state, migration, version-drift |
| mem0 authentication failed (check the API key) | exception | error | mem0, memory, authentication, api-key, http-401 |
| Failed to update artifact | http | error | artifacts, http-500, filesystem, sandbox, rollback |
| Could not safely resolve the checkpoint before the target… | http | error | checkpoint, lineage, regenerate, http-409 |
| GATEWAY_WORKERS= requires… | console | critical | config, startup, run-ownership, heartbeat, workers, system-exit, gateway |
| Channel session assistant_id is empty. Use 'lead_agent' or… | validation | error | channels, config, validation |
| No chat model could be resolved. Please configure at least… | exception | critical | config, authz, model, drift, valueerror |
| Invalid OpenViking peer scope | validation | error | openviking, agent-name, validation, memory |
| OpenViking startup_policy must be 'fail_fast' or 'warn' | validation | error | openviking, config, validation, startup |
| memory_data.facts | validation | error | memory, deermem, validation, import |
| Unknown SSO provider | http | error | sso, oidc, auth, config, http-400 |
| An account with this email already exists. Contact your… | http | error | auth, oidc, sso, http-409, account-takeover-guard, user-provisioning |
| Invalid message at input.messages | http | error | runs, http-400, messages, validation |
| search not supported by | exception | error | memory, not-implemented, search, backend |
| CSRF token missing. Include X-CSRF-Token header. | http | error | csrf, http-403, security, langgraph, cookies, headers |
| Model is not in the configured model allowlist | http | error | http, config, model, allowlist, api |
| Failed to save imported memory data | exception | error | memory, deermem, persistence, io, import |
| Duplicate fact ids are not allowed | validation | error | memory, validation, duplicate-key, deermem |
| Could not find source run for assistant message | http | error | regenerate, run-events, retention, http-409 |
| GATEWAY_WORKERS= cannot run with scheduler.enabled=true… | console | critical | config, startup, scheduler, workers, scaling, system-exit, gateway |
| mem0 startup_policy must be one of | validation | error | config, mem0, memory, validation |
| Only files in /mnt/user-data/outputs can be edited | http | error | api, artifacts, path-validation, http-400, sandbox |
| Too many files: maximum is | http | warning | upload, http-413, validation, gateway |
| backend_config.retrieval_adapter= | validation | critical | memory, configuration, dynamic-import, deermem |
| path escapes the user memory directory | exception | critical | deermem, memory, path-traversal, security, data-corruption |
| chat prompt template not found | exception | error | prompt, yaml, packaging, deermem, memory |
| fan-out failed for delivery | http | error | http-503, webhooks, fan-out, message-bus, retryable |
| Cannot set extra config key | http | error | mcp, config, secrets, masking, http-400 |
| mem0 allow_insecure_http must be a boolean | validation | error | config, mem0, memory, security, validation |
| channels.buzz.relay_url must be a ws:// or wss:// URL | validation | error | config, buzz, websocket, validation |
| Could not find an addressable checkpoint before the target… | http | warning | regenerate, checkpoint, first-turn, http-409 |
| The OpenViking memory backend requires… | exception | error | openviking, import, dependencies, installation |
| mem0 base_url must be an absolute http:// or https:// URL | validation | error | config, mem0, memory, url, validation |
| HTTP | exception | error | skills, http, frontend |
| Input text is required | http | warning | http-400, validation, input-polish, empty-input |
| Unknown model ' '. Use a model name defined under `models:`… | http | error | validation, http-422, config, models, agents |
| Failed to list agents | http | error | http-500, agents, filesystem, persistence |
| Failed to complete Lark connection setup. | http | error | lark, feishu, http-500, gateway, filesystem, credentials |