janhq/jan · error

Model does not exist

Error message

Model ${modelId} does not exist

What it means

Thrown by the model-delete path when the models/<modelId>/model.yml file does not exist, meaning the extension has no record of this model under its provider directory. The extension refuses to delete rather than removing an unknown directory.

Solutions

1. Verify the exact modelId via listModels / the app's model catalog before deleting.
2. Check that models/<modelId>/model.yml exists under the llamacpp provider's data dir.
3. If the directory is orphaned, remove it manually and refresh the model list.
4. Re-import the model if the download/import was interrupted.

Example fix

// before
await deleteModel(modelId)
// after
const models = await extension.listModels()
if (!models.some(m => m.id === modelId)) {
  console.warn(`Model ${modelId} not found; skipping delete`)
  return
}
await deleteModel(modelId)

const catalog = await listModels()
if (!catalog.includes(modelId)) {
  console.warn(`Skipping delete: ${modelId} is not registered with llamacpp provider`)
  return
}

null

try {
  await deleteModel(modelId)
} catch (e) {
  if (String(e).includes('does not exist')) {
    await refreshModelCatalog() // clear stale entry from UI
    return // treat as already deleted
  }
  throw e
}

When it happens

Trigger: Calling deleteModel(modelId) where models/<modelId>/model.yml is absent — wrong model ID, model imported by a different extension/provider, partial/corrupted import, or model already deleted.

Common situations: Stale UI cache listing models from another provider; user manually deleted files; modelId containing different casing or a provider prefix; import failed midway leaving a directory without model.yml.

Understand the failure class

Background: "File not found" and ENOENT errors: why libraries can't find a file that should exist — this error's family across 50 libraries.

Related errors

• Model does not exist
• model.yml not found for
• API request failed with status
• Backend update failed
• Backend update failed

AI-assisted analysis of janhq/jan@7205d770c1 (2026-09-17). Data as JSON: /api/errors/d53078848ec99dc0. Report an issue: GitHub.

Appendix: source

Thrown at extensions/llamacpp-extension/src/index.ts:2555

          errorData
        )}`
      )
    }

    const completionResponse = (await response.json()) as chatCompletion

    return completionResponse
  }

  override async delete(modelId: string): Promise<void> {
    const modelDir = await joinPath([
      await this.getProviderPath(),
      'models',
      modelId,
    ])

    if (!(await fs.existsSync(await joinPath([modelDir, 'model.yml'])))) {
      throw new Error(`Model ${modelId} does not exist`)
    }

    await fs.rm(modelDir)

    try {
      await this.refreshEnginePreset()
    } catch (e) {
      logger.warn(`Router refresh after delete(${modelId}) failed:`, e)
    }
  }

  override async getLoadedModels(): Promise<string[]> {
    try {
      let models: string[] = await pluginGetLoadedModels()
      return models
    } catch (e) {
      logger.error(e)
      throw new Error(e)

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