| GCS Bucket does not support health check | exception | warning | gcs, health-check, not-implemented |
| Invalid data URL format | validation | error | bedrock, nova, embedding, data-url, multimodal |
| MAVVRIK_API_ENDPOINT must be an HTTPS URL | validation | error | mavvrik, https, config, env-var, validation |
| No callback found for guardrail | exception | error | |
token_exchange Token endpoint returned invalid JSON | exception | error | |
| Tried to access route= | exception | error | auth, master-key, permissions, admin-routes, litellm |
| Unsupported image input: filesystem paths are not accepted… | validation | error | vertex-ai, imagen, image-edit, input-validation, pathlib, unsupported-type |
| User is not org_admin for Organization= | http | error | |
| custom_team_metadata_validate must be an async function | http | error | |
| Failed to fetch prompt version | exception | error | arize-phoenix, http-error, prompts, remote-api, retryable |
| file_id object does not match the configured storage prefix | validation | error | |
| MCP server is not configured. Endpoint discovery anchored… | http | error | |
| SSO authentication failed | http | error | |
| User with ID ' ' does not exist. Please create the user… | http | error | |
| Assigning team admins is a premium feature. You must be a… | http | error | |
| Content Filter: guardrail_name is required | validation | error | configuration, validation, content-filter, guardrails |
| MCPJWTSigner: access_token_discovery_uri discovery document… | exception | error | mcp, jwt, oidc, discovery, jwks |
| No upload URL returned in response headers | exception | error | |
| No videos found in the completed operation. Cannot edit. | exception | error | vertex-ai, veo, video-edit, generation-failed, valueerror |
| Syntax error in custom code | exception | error | guardrails, custom-code, syntax-error, sandbox, yaml |
| TAVILY_API_KEY is not set. Set `TAVILY_API_KEY` environment… | validation | error | tavily, web-search, api-key, environment-variables, litellm |
| API base is required for Topaz image variations | validation | error | litellm, image-variation, topaz, api-base, endpoint-url |
| Customer already exists, passed user_id= | http | error | litellm, unique-constraint, duplicate-key, customer-management, http-400 |
| Error adding member= | exception | error | |
| guardrail_type is required | validation | error | guardrail, config, validation, startup |
| messages parameter is required for Converse input | validation | error | bedrock, count-tokens, validation, messages, converse |
| Setting(s) are a LiteLLM Enterprise feature and are not… | http | error | |
| Tool call `function.arguments` must be a JSON string | exception | error | oci, tool-calls, arguments, json-serialization, request-validation |
| Each entry in `fallback_sap_modules` must include a 'model'… | validation | warning | sap, fallback-modules, validation, required-field |
| Either a2a_client or api_base is required for standard A2A… | validation | error | a2a, validation, parameter, configuration |
| Error finding organization membership for user_id= | http | error | |
| Failed to create File Search store | exception | error | |
| Failed to verify new secret | validation | error | |
| file_id is required for Bedrock file content retrieval | validation | error | bedrock, files-api, missing-parameter, s3, litellm |
| Invalid response - response.response is None - got | exception | error | |
| MCPJWTSigner: ttl_seconds must be > 0, got | validation | error | mcp, jwt, guardrail, config, startup |
| Missing Vault authentication credentials. Please set… | validation | error | |
| Only proxy admins can | http | error | |
| {response.aread()} | exception | error | langgraph, streaming, async, http-status, upstream-error |
| Vector store with ID | http | error | vector-store, duplicate, conflict, http-400, idempotency |
| completion_response["error"] | http | error | |
| file_id must reference a LiteLLM-managed storage object | validation | error | |
| Hashicorp secret manager is only available for premium… | validation | error | |
| No database connected | http | error | |
| oidc/file path is outside the allowed credential… | validation | error | |
| Policy engine not initialized. No policies loaded. | http | error | |
| Raw cloud storage file ids cannot be retrieved directly… | http | error | |
userinfo Failed to decode id_token JWT | exception | error | |
| Admin access required to test custom code guardrails | http | error | |
| Cannot specify both maxChunkCount and maxDocumentCount. | validation | warning | sap, grounding, validation, mutually-exclusive |
| CLI login session not found or expired. Run `litellm-proxy… | http | error | |
| Invalid format: file must contain 'blocked_words' key with… | validation | error | configuration, yaml, validation, content-filter |
| No model ID found after 'model' keyword. Expected format… | validation | error | |
| Failed to fetch distinct user agent tags | http | error | |
| LLM router not initialized | exception | error | |
| MCP Server with id already exists. Cannot create another. | http | error | litellm, mcp, duplicate, uniqueness, create |
| MCPJWTSigner: token_introspection_endpoint is required for… | exception | error | mcp, jwt, token-introspection, oauth, guardrail |
| Model ' ' not in team's allowed models. Team allowed… | http | error | litellm, projects, teams, model-access, validation, http-400 |
| Only admins or team admins can update projects | http | error | litellm, rbac, http-403, teams, projects |
| Palm was decommisioned on October 2024. Please use the… | validation | error | palm, gemini, deprecation, provider-migration, litellm |
| Project max_budget ( ) exceeds team's max_budget ( ). Team | http | error | litellm, projects, teams, budget, validation, http-400 |
| The caller does not have access to this managed | http | error | |
| Tool call `id` must be a string | validation | error | oci, tool-calls, correlation-id, request-validation |
| AlephAlphaException | exception | error | aleph-alpha, litellm, context-window, token-limit, prompt-too-long |
| APIError | exception | error | openrouter, api-error, catch-all, status-code, litellm, exception-mapping |
| Invalid JSON in request body | exception | error | |
| LEMONADE_API_BASE is not set. Please set the environment… | validation | error | lemonade, get-models, env-var, configuration |
| Max depth of exceeded while scanning vector_store_id values | http | error | |
| Mock testing request params are disabled on this proxy | http | error | |
| PANW Prisma AIRS: api_key is required | validation | error | guardrail, panw, prisma-airs, api-key, config |
| Team(s) not found: . A team must exist before it can be set… | http | error | |
| Unable to convert openai tool calls= | exception | error | |
| Unsupported Vertex AI Search extra_body fields | exception | error | |
| Model ' ' not found in model_list. Please check your… | http | error | |
| OpenSandbox api_base is required. Pass api_base or set | validation | error | opensandbox, env-var, configuration, litellm |
| Team= is blocked. Update via `/team/unblock` if you're an… | exception | error | team, blocked, auth, admin-action, litellm-proxy |
content_policy_violation {provider_message} | exception | error | |
| Custom prompt management does not support compile prompt… | exception | error | notimplementederror, prompt-management, subclass-contract, litellm |
| Dynamic Langfuse hosts must include dynamic Langfuse… | http | error | |
| Failed to add model to db. Check your server logs for more… | http | error | |
| HF response not in expected format | http | error | sagemaker, embedding, response-parsing, format |
| internal_user_viewer role can only ingest files to an… | http | error | |
| request is required | validation | error | a2a, validation, parameter |
| Unsupported image format | validation | error | bedrock, image, video, format, validation |
| Video remix is not supported by Google Veo. | exception | error | veo, gemini, video-remix, not-implemented, unsupported-operation |
| AWS KMS - Encrypted Value of Key= | exception | error | |
| boto3/botocore is required for AWS event stream parsing | exception | error | bedrock, invoke-agent, boto3, import-error, dependencies |
| Delete operations are not implemented for | exception | error | notimplementederror, secret-manager, subclass-contract, litellm |
| embedding_config is required in litellm_params for Azure AI… | exception | error | |
| GoogleAIStudioFilesHandler does not support file content… | exception | error | gemini, files-api, not-implemented, file-download |
| Invalid proxy server token passed. valid_token=None. | exception | error | auth, api-key, invalid-token, litellm-proxy |
| Model is required in dotprompt metadata | http | error | |
| OpenRouter API key is required. Set OPENROUTER_API_KEY… | validation | error | openrouter, responses-api, authentication, env-var, litellm |
| Organization not found | http | error | |
| Origin mismatch on host | exception | error | ssrf, redirect, hostname, origin, cdn |
| Origin mismatch on port | exception | error | ssrf, redirect, port, origin |
| Response modified by pipeline | exception | error | |
| Source video has neither gcsUri nor bytesBase64Encoded… | exception | error | vertex-ai, veo, video-edit, response-shape, gcs |
| the upstream authorization server rejected the gateway's… | http | error | |
| Tool call `function` must be a dictionary | exception | error | oci, tool-calls, request-validation, serialization |