ErrLookup › janhq/jan

janhq/jan

Jan is an open source alternative to ChatGPT that runs 100% offline on your computer. · TypeScript · 853 source files

Analyzed at 7205d770c1 on 2026-09-17. 172 documented errors.

Code / Message	Type	Severity	Tags
No safetensors file found in repository	exception	error	huggingface, validation, model-format
Provider must have base_url configured	validation	error	provider, validation, configuration
Failed to serialize MCP settings	panic	critical	panic, serde, serialization, mcp, config
Invalid input	exception	error	validation, vector-db, dimension-mismatch, input
Import of " " did not complete	exception	error	download, model-import, bootstrap
Not a CUDA runtime archive	validation	error	cuda, archive, validation, backend, filename
cannot resolve current exe	panic	critical	panic, current-exe, container, detached-process, cli
MlxError , message: " " }}	error_code	error	mlx, rust, tauri, model-loading
llamacpp extension not available	exception	error	embedding, extension-not-available, initialization-order
Backend setup was not successful. Please restart the app in…	exception	error	config, backend-setup, network, first-run, typescript
Failed to create fallback client	panic	critical	panic, reqwest, tls, ca-certificates, proxy, fallback
This conversation has no user message to respond to. Add a…	exception	error	chat, validation, message-window, state
${e}	exception	error	ipc, plugin, tauri, rust, loaded-models, error-wrapping
( )	exception	error	network, fetch, connection, transport
${error.message}	exception	error	error-propagation, passthrough, provider-api, models
No installed " " backend found. Install that backend first…	validation	error	cuda, backend, ordering, dependency, validation
${String(e)}	exception	error	ipc, plugin, tauri, session, rust, load
LlamacppError , message: " " }}	error_code	error	rust, tauri, llamacpp, structured-error
llama.cpp router is not running. Please restart the app.	exception	critical	router, load, startup, sidecar, process, critical
Failed to load llamacpp backend	exception	error	backend, gpu, native, llamacpp
Failed to get app data dir	panic	critical	panic, app-data-dir, mcp, lockfile, env-var
Failed to determine the home directory	panic	critical	panic, env-var, home-directory, container, app-data-dir
`model-errors:startModelFailed` model-errors:startModelFailed	exception	error	llamacpp, local-model, engine, gpu, memory, typescript, i18n
clone log file	panic	critical	panic, file-descriptor, try-clone, log-file, cli
model-errors:createModelFailed	exception	error	transport, model-load, engine, llamacpp, provider
Found backend(s) but none had a build/bin directory to…	exception	error	cuda, backend, filesystem, corrupt-install, state-mismatch
Invalid argument	validation	error	rust, tauri, validation, input
Executable must have a parent directory	panic	warning	panic, path, parent, mcp, defensive
`BlockCountInvalid` Invalid metadata: block_count not found or invalid	error_code	error	gguf, rust, model-loading, metadata
Failed to fetch models from	http	error	http, catalog, provider, api-error
Failed to ingest file	exception	error	store, ingestion, empty-result
Critical settings "llamacpp_version" / "llamacpp_backend"…	exception	critical	settings, invariant, configuration, developer-error, typescript
Failed to normalize backend layout	exception	error	backend, filesystem, normalization, symlink, move, typescript
Router failed its health check on backend	exception	critical	backend, health-check, router, gpu, rollback, typescript
API request failed with status	http	error	http, api, llamacpp, network
LlamaCpp extension not found	exception	error	llamacpp, extension, backend, update
No API key configured for	validation	error	api-key, authentication, configuration, provider
GGUF version has no readable tensor block	validation	error	gguf, file-format, versioning, rust, llamacpp
Conversational extension not available yet	exception	warning	race-condition, startup, extension, retry
Failed to get current exe path	panic	critical	panic, current-exe, mcp, container, sandbox
Platform not supported	exception	error	platform, autoqa, cross-platform, not-implemented
error.message	exception	warning	error-handling, rethrow, provider-api
Failed to determine embedding context size	exception	error	embedding, initialization, wrapper-error
`IoError` IO error	error_code	error	io, rag, rust
`HeadCountInvalid` Invalid metadata: head_count not found or invalid	error_code	error	gguf, rust, model-loading, metadata
Database error	exception	error	vector-db, sqlite, rusqlite, database, tauri, rust
Current backend not found	exception	warning	llamacpp, settings, backend, configuration
Invalid modelId: . Only alphanumeric and / _ - . characters…	validation	error	validation, input, model-import
tensor count is unreasonably large	validation	error	gguf, corrupt-file, tensor, binary-parsing
API key rotation exhausted	exception	error	api-key, rotation, authentication, rate-limit
MLX model appears to have crashed! Please reload!	exception	error	mlx, health-check, crash, local-server
Catalog not supported for	exception	error	catalog, provider, unsupported, configuration
Checksum mismatch for	exception	critical	checksum, integrity, download, verification, network, typescript
`model-errors:noRunningSession` model-errors:noRunningSession	error_code	error	session, llamacpp, local-server, state
<Utf8Error>	exception	error	gguf, utf8, string, validation, llamacpp, rust
Authentication failed: API key is required or invalid for	exception	error	http-401, api-key, authentication, network
File ' ' exceeds size limit ( bytes > MB).	validation	error	file-size, validation, rag
MLX API request failed with status	http	error	mlx, http, api-error, openai-compatible
Failed to fetch supported backends	exception	error	network, backend, rate-limit, api, typescript, retryable
Failed to save store	panic	critical	panic, store, migration, disk-full, permissions, io
`ParseError` Failed to parse document	error_code	error	rag, rust, document-parsing
ServiceHub not initialized or model/provider missing.	exception	error	transport, provider, initialization, state
Backend installed but failed to refresh UI	exception	warning	backend, ui, refresh, settings, typescript
Failed to parse request body as JSON	exception	error	fetch, json, request-body, serialization
Unsupported file type	validation	warning	rag, validation, file-type, tauri, rust
`EmbeddingLengthInvalid` Invalid metadata: embedding_length not found or invalid	error_code	error	gguf, rust, model-loading, metadata
ubatch_size ( ) is too small. Minimum required	validation	error	validation, embeddings, configuration, llamacpp
e	exception	warning	error-wrapping, llamacpp, ipc
ingestImage: attachment is not image	validation	error	type-guard, uploads, invalid-argument
Model already loaded!!	exception	error	duplicate-load, state-conflict, session
Unsupported platform	exception	error	build, platform, setup, node, binaries
Tauri error	exception	error	rust, tauri, framework-error
Backend update failed	exception	error	llamacpp, backend, update, contract
`DatabaseError` Database error	error_code	error	database, sqlite, rust, tauri-plugin
WebSearchError	error_code	error	network, web-search, rust, tauri-plugin
Models endpoint not found for	exception	error	http-404, base-url, configuration, network
Array length is unreasonably large	validation	error	gguf, metadata, array, corrupt-file, binary-parsing
Backend update failed	exception	error	llamacpp, backend, update, download
Failed to count embedding tokens	exception	error	embedding, tokenization, wrapper-error
IO error	exception	error	rust, io, tauri, file-system
No update available	exception	info	updater, tauri, no-update, versioning
`ContextLengthInvalid` Invalid metadata: context_length not found or invalid	error_code	error	gguf, rust, model-loading, metadata
Failed to resolve ingested attachment id	exception	error	rag, empty-result, api-response
Not a supported backend archive! Missing llama-server…	validation	critical	backend, validation, archive, missing-binary, llama-server, typescript
No supported backend binaries found for this system…	exception	critical	backend, platform, architecture, no-binaries, typescript
Access forbidden: Check your API key permissions for	exception	error	http-403, permissions, api-key, cors
Failed to parse archive name	validation	error	backend, validation, archive, naming-convention, regex, typescript
Failed to read name for tensor	validation	error	gguf, corrupt-file, truncated-file, binary-parsing
Tokenize request failed with status	http	error	http, network, tokenization, llamacpp
Unexpected error while fetching models from	exception	error	json, unexpected-error, provider-api, parsing
the request exceeds the available context size.	exception	error	mlx, context-length, token-limit, truncation
Vector DB extension does not support project-level ingestion	exception	error	unsupported, rag, vectordb
`ArchitectureNotFound` Invalid metadata: architecture not found	error_code	error	gguf, metadata, kv-cache, missing-key
Failed to parse document	error_code	warning	rag, parsing, documents, tauri, rust
Response body is null	exception	error	mlx, streaming, fetch, null-body
Could not unload the model. Stop its active requests and…	exception	error	model-lifecycle, unload, retry
Jan data folder is unavailable	exception	error	configuration, filesystem, initialization
`UnsupportedFileType` Unsupported file type	error_code	error	rag, rust, file-types
response.statusText	exception	error	tauri, fetch, file-loading
useSidebar must be used within a SidebarProvider.	exception	error	react, context