langchain-ai/deepagents
Documented errors, page 2 of 8. Back to langchain-ai/deepagents
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| {sandbox_id} | exception | error | runloop, not-found, keyerror, stale-id |
| Device flow failed | exception | error | oauth, device-flow, github, authentication |
| MCP token file has unsupported version ( ; expected )… | exception | error | mcp, versioning, schema-validation, migration |
| modes can only be provided when agent is a factory | exception | error | python, validation, model-spec, config |
| ReadResult window must satisfy 1 <= start_line <= end_line… | validation | error | validation, off-by-one, backend-protocol |
| Received unsupported arguments | validation | error | python, api-misuse, typeerror, unsupported-arguments |
| Path is neither a file nor a directory | exception | error | filesystem, edge-case, symlink |
| persistent server env overrides must use the | validation | error | validation, environment, valueerror |
| managed_snapshot is a different generation than the one in… | validation | error | configuration, resolver, snapshot, generation-mismatch, caching |
| debug log directory is not a real directory | exception | error | security, filesystem, symlink, windows |
| Failed to enumerate entry points; no third-party plugins in… | console | warning | plugins, entry-points, packaging, environment, python |
| Compiled agent does not expose a LangGraph tool node | exception | error | langgraph, sdk-incompatibility, tooling |
| shared config resolver has no managed TOML provider | exception | error | configuration, resolver, internal-api, missing-provider, testing |
| is characters; maximum is . Remove at least characters. | validation | error | limit-exceeded, goal-state, size-limit |
| NotImplementedError raised by abstract `id` property… | exception | error | python, not-implemented, sandbox, abstract-property |
| Server process is not running | exception | error | lifecycle, subprocess, runtime-error |
| interpreter_ptc='all' exposes every host tool to PTC calls… | validation | error | python, configuration, security, hitl, validation |
| NotImplementedError raised by abstract `glob` (backend does… | exception | error | not-implemented, abstract-method, backend-protocol |
| This server does not provide dcode's /offload operation… | exception | error | network, http-404, version-mismatch, offload, server |
| Credential file has unsupported version (expected ). Delete… | exception | error | auth, version-mismatch, schema-migration, local-storage |
| Invalid DEEPAGENTS_HOME | console | error | environment, configuration, path-validation, script |
| Marketplace redirect must use https | exception | error | network, security, https, redirect |
| Namespace component at index | validation | error | validation, namespace, store |
| ReadResult.total_lines | validation | error | validation, pagination, backend-protocol |
| Directory is owned by another user | exception | error | filesystem, permissions, offload, permission-error, ownership |
| File path must point to a .json marketplace file | exception | error | filesystem, validation, json |
| hooks_snapshot_id is required to emit server-owned hook… | exception | error | hooks, session, runtime-error |
| must be a positive finite number, got | validation | error | validation, timeout, configuration, auto-mode |
| Offload operation must use the agent's composite backend | validation | error | wiring, backend, offload, configuration |
| temporary artifact identity changed | exception | error | filesystem, race-condition, security, temp-file, inode |
| `unreadable_reason` implies the token is not usable… | validation | error | python, validation, dataclass, invariant |
| task call limiter not initialized | exception | error | quickjs, task-bridge, initialization |
| The namespace factory tried to read the Runtime, but it is… | exception | error | runtime-context, namespace, langgraph |
| Async subagent ' ' has no url configured. ASGI transport… | validation | error | python, langgraph, async, configuration |
| Cannot enforce --allow-fs-tools on compiled subagent | validation | error | agent, security, subagents, config |
| Invalid interpreter_ptc string | validation | error | python, configuration, valueerror, validation |
| LangGraph returned non-object thread state. | exception | error | langgraph, server-response, thread-state, type-error |
| agent invocation retry loop exited unexpectedly | exception | error | runtime, retry, internal-invariant |
| Could not parse optional-dependency metadata; cannot… | exception | error | packaging, metadata, parsing |
| Not a supported sessions database; missing tables | console | error | sqlite, schema-validation, script, file-not-found |
| Offload request must be a JSON object. | validation | error | type-error, json, validation, payload |
| archive read failed; refusing to overwrite existing history | exception | error | archive, read-failure, safety, offload |
| Could not create module spec for | exception | error | python, import, importlib |
| Distribution not found; cannot preserve already-installed… | exception | error | packaging, metadata, extras |
| NotImplementedError raised by abstract `download_files`… | exception | error | python, not-implemented, backend-protocol, file-download |
| NotImplementedError raised by abstract `read` (backend does… | exception | error | not-implemented, abstract-method, backend-protocol |
| No credentials are configured for any model in… | exception | error | config, credentials, model-policy, startup |
| Error: Failed to fully delete skill | console | error | filesystem, permissions, cli |
| uv tool receipt not found at | exception | error | uv, filesystem, installation, receipt-missing |
| AGENTS.md: missing required root prompt | exception | error | import, zip, validation, fleet |
| shell.allow_list is missing from the configuration manifest | exception | error | python, configuration, manifest, version-skew |
| archive backend returned no response for | exception | error | archive, backend, offload, empty-response |
| Cannot determine location for | exception | error | python, import, packaging |
| ` ` entries must be non-empty, non-whitespace strings | validation | error | config, validation, middleware |
| Summarizer returned a | exception | error | summarization, type-mismatch, compaction, schema |
| uv tool receipt requirement | exception | error | uv, receipt-schema, unsupported-source |
| enable_interpreter=True is not supported with a remote… | validation | error | python, configuration, sandbox, cli |
| NotImplementedError raised by abstract `ls` (backend does… | exception | error | not-implemented, abstract-method, backend-protocol |
| PTC bridge called outside active eval | exception | error | concurrency, state, eval-lifecycle, quickjs |
| remote_source must be a validated absolute HTTPS URL | validation | error | validation, configuration, url, https |
| RubricMiddleware: `grader_state_schema` is required with… | validation | error | python, validation, constructor, value-error |
| Failed while waiting for Vercel sandbox startup. | exception | error | python, sandbox, vercel, startup, network |
| ReadResult.next_offset | validation | error | validation, pagination, backend-protocol |
| Registered middleware must be an AgentMiddleware, got | validation | error | extensions, middleware, type-check |
| Server graph ' ' failed readiness check (status: ) | exception | error | http, health-check, langgraph |
| contains a malformed ' }' reference. Use ' ' or ' '. | exception | error | mcp, config-validation, syntax |
| Git is required to add repository-backed plugin marketplaces | exception | error | git, environment, missing-dependency, subprocess |
| Profile module not found | exception | error | python, import, file-not-found, version-mismatch |
| Offload server returned a non-object response. | exception | error | protocol, schema, offload, server-response |
| Plugin state file | exception | error | state, corruption, json, persistence |
| SHELL_ALLOW_ALL should not be used with… | validation | error | python, configuration, type-error, shell, security |
| chunk limit must be positive | validation | error | python, validation, valueerror, messaging, chunking |
| Google Cloud location is required for provider… | exception | error | gcp, vertex-ai, config, env-var |
| {message} | exception | error | headless, hitl, iteration-limit, permissions |
| Offload server returned an invalid operation response. | exception | error | protocol, schema, offload, hooks |
| RubricMiddleware grader did not return a… | exception | error | python, rubric, structured-output, runtime-error |
| Workspace server returned an invalid binding response. | exception | error | protocol, schema, workspace, server-response |
| Could not apply to model profile | validation | error | configuration, model, env-var, profile |
| Failed to build blueprint | exception | error | runloop, blueprint, dockerfile, build-failed |
| Invalid plugin name | exception | error | plugins, manifest, naming, validation |
| No credentials configured. Please set one of… | exception | error | config, credentials, env-var, startup |
| Runloop rejected the credentials; check RUNLOOP_API_KEY (or… | exception | error | authentication, api-key, runloop, credentials |
| schedule duration must use 'm' for minutes or 'h' for hours | validation | error | cron, validation, scheduling, argument-parsing |
| Goal criteria request must be an object. | validation | error | validation, type-error, agent-hooks |
| Project hooks cannot execute before workspace trust is… | exception | error | security, hooks, workspace-trust |
| Skill trust store has an unrecognized schema version (this… | exception | error | trust-store, schema-version, forward-compatibility |
| Context tool names conflict with criteria-agent tools | exception | error | configuration, naming-conflict, valueerror, tools |
| Failed to parse hook interrupt | exception | error | hooks, interrupt, payload-parsing |
| Manual approval mode could not be persisted; graph… | exception | error | persistence, approval-mode, store |
| from split_plugin_id (invalid plugin id) | exception | error | plugin-id, argument-validation |
| a snapshot must carry no data; an empty table is what every… | validation | error | invariant, configuration, toml, state-consistency |
| dcode | console | error | cli, startup, environment, exit-code-2, dcode |
| must be a table | validation | error | python, toml, config, type-error |
| Offloading conversation history to backend failed during… | console | warning | summarization, backend, storage, data-loss |
| Plugin is not installed | exception | error | plugin, registry, marketplace-error |
| Unsupported hook-specific output | exception | error | typeerror, hooks, reducer, internal-invariant |
| Expected PermissionRequestDecision, got | exception | error | hooks, permissions, type-validation, typeerror |
| NotImplementedError raised by abstract `grep` (backend does… | exception | error | not-implemented, abstract-method, backend-protocol |
| Skill trust store is not a JSON object | exception | error | trust-store, json, schema-validation |
| Device code response from | exception | error | mcp, oauth, device-flow, schema-validation, http |