ErrLookup › vercel/ai
vercel/ai
The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-powered applications and agents · TypeScript · 2,371 source files
Analyzed at 69428b1f8b on 2026-08-30. 577 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| OAuth endpoint URL is not allowed | exception | error | oauth, security, ssrf, url-validation |
| Continuation contains a non-JSON-serializable value. | validation | error | code-mode, continuation, serialization, typeerror |
| The persisted ACP turn start configuration is incompatible… | exception | error | acp, fingerprint, configuration-drift, resume |
| ${streamError?.message ?? 'OpenAI stream failed before any… | exception | error | openai, api-error, streaming, quota, authentication |
| 'tool choice type: ' functionality not supported. | exception | error | xai, tool-choice, unsupported-functionality, configuration |
| ' ' functionality not supported. | exception | error | streaming, unsupported-feature, configuration |
| Cannot add request transformations because the current… | exception | error | vercel-sandbox, network-policy, request-transformation, conflict |
| error.message | exception | error | code-mode, run-error, error-wrapping, sandbox |
| ACP prompt update stream failed | exception | error | acp, streaming, agent-protocol, error-wrapping |
CODE_MODE_PROTOCOL_ERROR Code-mode interrupt outer tool call id does not match its continuation. | exception | error | code-mode, protocol-error, continuation, integrity-check |
| The model " " does not support batch processing. | exception | error | acp, tools, session-recovery, fingerprint-mismatch |
| AI Gateway authentication was selected, but neither… | exception | error | authentication, missing-env-var, ai-gateway, configuration |
| Prodia response missing multipart boundary in content-type | exception | error | network, multipart, provider-response, prodia |
| The Claude Code harness requires an explicit `portEndpoint`… | exception | error | configuration, sandbox, websocket, validation |
| FLUX 3 video requires an explicit duration when | validation | error | video-generation, invalid-argument, fluent-input-validation, client-side |
| Redirect from could not be validated and was blocked | exception | error | security, ssrf, redirect, network |
| Failed to resolve sandbox default working directory | exception | error | sandbox, shell, harness, command-failed |
| OAuth protected resource metadata URL | exception | error | oauth, security, same-origin, mcp, rfc9728 |
| Harness session has no unfinished turn to suspend. | exception | error | lifecycle, state-machine, harness, invalid-operation |
| Failed after attempts. Last error | exception | error | retry, exponential-backoff, rate-limit, network |
| StdioClientTransport not connected | exception | error | mcp, stdio, lifecycle, process-spawn |
| Deep Agents reasoning requires ChatAnthropic | exception | error | provider-unsupported, model-config, anthropic |
| Vercel Sandbox authentication failed. Set… | exception | critical | authentication, sandbox, vercel, config |
| Invalid host tool catalog poll response. | exception | error | network, relay, protocol-mismatch, validation |
| unknown tool " ". | validation | error | tools, configuration, invalid-argument |
| Cline did not create its native skills tool. | exception | error | internal-invariant, version-mismatch, skills, cline |
| recovered this turn through disk replay only and has no… | exception | error | acp, session-recovery, replay-only, state-restoration |
| Unsupported chunk type | exception | error | streaming, exhaustiveness, version-mismatch, internal-error |
| claude-code session is already stopped; cannot detach. | exception | error | session-lifecycle, claude-code, harness, idempotency |
BLACK_FOREST_LABS_VIDEO_GENERATION_ERROR Black Forest Labs reported the video as Ready but returned no result.sample… | exception | error | video-generation, provider-api, response-validation, polling |
| Cline private session directory | validation | error | configuration, path-validation, cline |
| `Harness ' ' emitted a built-in tool approval request but… | exception | error | harness, tool-approval, builtin-tool, api-contract |
| Google Generative AI API key is required for realtime token… | exception | error | api-key, authentication, google, realtime, config |
| (exit ) ` : ''} | exception | error | sandbox, filesystem, permissions, harness, skills |
AbortError Polling was aborted | exception | info | abort, polling, cancellation, google-interactions |
| Protected resource does not match expected (or origin) | exception | error | oauth, resource-indicator, rfc9728, security, mcp |
| The separator " " must not be part of the alphabet " ". | validation | error | configuration, invalid-argument, ids |
| ACP authentication and session profile settings cannot… | exception | error | acp, session, configuration, immutability |
| OAuth authorization response issuer | exception | error | oauth, security, issuer-mismatch, csrf |
BLACK_FOREST_LABS_VIDEO_GENERATION_TIMEOUT Black Forest Labs video generation timed out after | exception | error | video-generation, timeout, polling, network |
| 'element streams in no-schema mode' functionality not… | exception | error | streaming, no-schema, unsupported-functionality, api-misuse |
| Server does not support tools | exception | error | mcp, capability-negotiation, tools, client |
| Model ' ' only supports streaming transcription. Use… | validation | error | google, transcription, wrong-api, model-capability |
| Modern MCP result is missing resultType | exception | error | mcp, protocol-version, response-shape, compatibility |
| Continuation signing key must not be empty. | validation | error | configuration, security, hmac, empty-key |
| Incompatible OIDC provider at | exception | error | oauth, oidc, pkce, mcp |
| ACP cold-session state is incompatible with the current… | exception | error | acp, cold-session, fingerprint, configuration-drift, permission-mode |
CODE_MODE_HOST_TOOL_ERROR Host tool failed. | exception | error | code-mode, host-tool, error-wrapping, sandbox |
CODE_MODE_SOURCE_TOO_LARGE Code mode source exceeds the | exception | error | code-mode, size-limit, execution-policy, resource-limit |
| `Harness session has an unfinished turn and must be… | exception | error | lifecycle, state-machine, harness, tool-approval |
| Invalid argument for parameter model: model | validation | error | acp, path-validation, configuration, path-traversal |
| Tool relay failed with | exception | error | http, mcp, tool-execution, network |
| Unsupported or invalid transport configuration. If you are… | exception | error | mcp, configuration, typescript, factory |
| Host tool relay request is too large. | http | error | http, payload-size, limit-exceeded |
| No object generated: response did not match schema. | exception | error | schema-validation, structured-output, llm-output, no-object-generated |
| Google Generative AI API key is required for streaming… | exception | error | api-key, authentication, google, websocket, speech-translation |
| OAuth client information must be saveable for dynamic… | exception | error | oauth, mcp, configuration, dynamic-client-registration |
| ACP cold restoration completed without identifying the… | exception | error | acp, session-restore, protocol, race-condition |
| Unsupported role | exception | error | xai, unsupported-role, exhaustiveness |
| Invalid skill name | validation | error | validation, skills, harness, path-safety, security |
| The claude-code harness does not yet support user message… | exception | error | unsupported-capability, claude-code, prompt, multimodal |
| Custom network policy requires at least one of… | exception | error | vercel-sandbox, network-policy, validation, configuration |
| Unsupported task type | exception | error | bedrock, image-generation, unsupported-functionality |
| ACP session initialization did not produce a session. | exception | error | acp, session, initialization, protocol |
| Cannot set the network policy because the current Vercel… | exception | error | vercel-sandbox, network-policy, request-transformation, conflict |
| HarnessAgent: element streams in | exception | error | not-implemented, streaming, harness-agent, api-limitation |
| ACP authentication method | exception | error | acp, authentication, configuration |
| Cannot write harness skill | exception | error | sandbox, filesystem, conflict, harness, skills |
| Image generation timed out after | exception | error | timeout, image-generation, polling, luma |
| Invalid AI SDK harness skills manifest | validation | error | sandbox, manifest, json, validation, harness |
| 'system messages are only supported at the beginning of the… | exception | error | google, gemini, messages, system-prompt |
| Both apiKey and authToken were provided. Please use only… | validation | error | configuration, authentication, provider-setup |
| claude-code bridge did not complete WebSocket handshake… | exception | error | network, websocket, timeout, sandbox |
| Failed to process error response | exception | error | network, http, api-response, provider |
| SandboxChannel: cannot open a closed channel. | exception | error | sandbox, channel, lifecycle, websocket |
| `Harness session already has a turn in progress. | exception | error | concurrency, lifecycle, state-machine, harness |
| AWS SigV4 authentication requires AWS credentials. Please… | exception | error | aws, authentication, bedrock, missing-credentials |
| conflicting descriptions for OpenAI tool namespace | exception | error | openai, tools, namespaces, unsupported-functionality |
| Harness 'cline' cannot require structured output with the… | exception | error | structured-output, provider-capability, codex-cli, cline |
| ACP session initialization failed | exception | error | acp, session-initialization, bridge, process-startup |
CODE_MODE_TOOL_APPROVAL_DENIED Tool " " approval was denied ` : '.'} | exception | warning | code-mode, approval-denied, human-in-the-loop, interrupt |
| Code mode interrupt payload must be an object. | validation | error | code-mode, validation, typeerror, interrupt-payload |
| AWS credential provider failed | exception | error | bedrock, aws, credentials, configuration |
| Failed after attempts with non-retryable error | exception | error | retry, non-retryable, api-error, network |
| Invalid Cline history file name | validation | error | validation, security, path-traversal |
| google.interactions: cannot stream a background interaction… | exception | error | google-interactions, missing-argument, streaming |
| Model ' ' does not support streaming transcription. Use a… | validation | error | google, transcription, wrong-api, model-capability |
| No object generated: the model did not return a response. | exception | error | acp, validation, duplicate, skills |
| Protocol error: Received a response for an unknown message… | exception | error | json-rpc, protocol, state-corruption |
| does not support structured output through ACP. | exception | error | acp, structured-output, unsupported-capability |
| No video generated. | exception | error | video, empty-response, content-policy, provider |
| Deepgram speech model | exception | error | deepgram, speech, configuration, missing-parameter |
| The sandbox implementation does not support configuring… | console | warning | security, credentials, sandbox, degradation |
| Tool call not found. | exception | error | streaming, tool-call, provider-response, inconsistent-state |
| No such embeddingModel | exception | error | xai, embeddings, no-such-model, provider-capability |
| ACP source.pnpmWorkspaceYaml must not be empty. | validation | error | configuration, validation, npm |
| [cursor] auth: cannot configure Cursor provider… | console | warning | cursor, authentication, configuration, console-warning |
| Google realtime auth token request failed | http | error | network, authentication, google, realtime, http-error |
| Unsupported output | exception | error | configuration, api-misuse, exhaustiveness |
| Video generation timed out after | exception | error | video, timeout, polling, network |