> ## Documentation Index > Fetch the complete documentation index at: https://openrouter.ai/docs/llms.txt > Use this file to discover all available pages before exploring further. # GenerationContentError The stored failure for this generation, or null when it succeeded ## Fields | Field | Type | Required | Description | Example | | ----------------- | -------------------------------------------------------------------------------------------------- | -------------------- | ------------------------------------------------------------------------------ | ------------------------------------------------------ | | `message` | *Nullable\[str]* | :heavy\_check\_mark: | Error message returned to the client | Timed out waiting for the provider | | `previous_errors` | List\[[components.GenerationContentErrorAttempt](../components/generationcontenterrorattempt.mdx)] | :heavy\_check\_mark: | Every upstream attempt that failed before the returned error, in attempt order | | | `provider_name` | *Nullable\[str]* | :heavy\_check\_mark: | Provider whose error was returned to the client, when known | Vertex | | `raw` | *Nullable\[str]* | :heavy\_check\_mark: | Raw error body behind the returned error, when stored | \{"error":\{"code":504,"message":"Deadline exceeded"}} | | `status` | *Nullable\[int]* | :heavy\_check\_mark: | HTTP status returned to the client | 504 |