> ## 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` | `*string` | :heavy\_check\_mark: | Error message returned to the client | Timed out waiting for the provider | | `PreviousErrors` | \[][components.GenerationContentErrorAttempt](../../models/components/generationcontenterrorattempt.mdx) | :heavy\_check\_mark: | Every upstream attempt that failed before the returned error, in attempt order | | | `ProviderName` | `*string` | :heavy\_check\_mark: | Provider whose error was returned to the client, when known | Vertex | | `Raw` | `*string` | :heavy\_check\_mark: | Raw error body behind the returned error, when stored | \{"error":\{"code":504,"message":"Deadline exceeded"}} | | `Status` | `*int64` | :heavy\_check\_mark: | HTTP status returned to the client | 504 |