deepseek-ai/deepseek-harness · error · LlmError

TRANSPORT

TRANSPORT

Error message

DeepSeek API stream from ${connection.baseURL} failed

What it means

Error "DeepSeek API stream from ${connection.baseURL} failed" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/llm/llm-deepseek/src/adapter.ts:498

        if (result.done) {
          exhausted = true
          return
        }
        yield result.value
      }
    } catch (error: unknown) {
      if (timeoutOf(watchdog.signal, STREAM_IDLE_TIMEOUT_CODE) !== undefined) {
        throw new LlmError(
          `DeepSeek stream idle timeout after ${connection.streamIdleTimeoutMs}ms`,
          'TIMEOUT',
          { cause: error },
        )
      }
      if (options.signal?.aborted) {
        throw new LlmError('DeepSeek request aborted by caller', 'ABORTED', { cause: error })
      }
      if (error instanceof LlmError) throw error
      throw new LlmError(`DeepSeek API stream from ${connection.baseURL} failed`, 'TRANSPORT', { cause: error })
    } finally {
      consumer.abort('DeepSeek stream consumer stopped')
      if (!exhausted && iterator.return !== undefined) {
        try {
          await iterator.return()
        } catch (_abortedTransportTeardown) {
          // The consumer controller already owns termination; a return-time abort cannot add a second outcome.
        }
      }
    }
  }

  private async * request(
    options: GenerateOptions,
    signal: AbortSignal,
    connection: DeepSeekConnectionOptions,
    apiKey: string,
    userId: AnonymousUserId,

View on GitHub (pinned to b150a551b8)

Solutions

1. Retry the request; verify baseURL reachability and network connectivity.

When it happens

Trigger: Thrown at packages/llm/llm-deepseek/src/adapter.ts:498 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of deepseek-ai/deepseek-harness@b150a551b8 (2026-08-24). Data as JSON: /api/errors/9df8c4b096f9cd58. Report an issue: GitHub.