deepseek-ai/deepseek-harness · error

terminal process has exited

Error message

terminal process has exited

What it means

Error "terminal process has exited" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/subprocess/subprocess-local/src/terminal.ts:79

    this.pid = terminal.pid
    this.rootIdentity = inspector.processTree(this.pid).find(member => member.pid === this.pid)
    this.done = this.outcome.promise
    this.dataDisposable = terminal.onData((data) => { this.output.write(Buffer.from(data, 'utf8')) })
    this.exitDisposable = terminal.onExit(({ exitCode, signal: exitSignal }) => {
      if (this.exited) return
      this.exited = true
      this.output.end()
      this.outcome.resolve({
        exitCode: exitSignal === undefined || exitSignal === 0 ? exitCode : null,
        signal: signalName(exitSignal),
      })
    })
  }

  // node-pty writes synchronously; the seam returns a promise for remote transports.
  // oxlint-disable-next-line typescript/require-await -- Preserve promise rejection semantics at the async provider contract.
  async write(data: string): Promise<void> {
    if (this.exited) throw new Error('terminal process has exited')
    this.terminal.write(data)
  }

  // Local inspection is synchronous; the seam returns a promise for remote transports.
  // oxlint-disable-next-line typescript/require-await -- Preserve promise rejection semantics at the async provider contract.
  async inspectForeground(): Promise<SubprocessTerminalForeground | undefined> {
    this.descendants()
    const processGroupId = this.inspector.foregroundPgid(this.pid)
    if (processGroupId === undefined) return undefined
    return {
      processGroupId,
      inputWaiting: this.inspector.isStdinWaiting(processGroupId),
    }
  }

  async signalForeground(signal: SubprocessTerminalSignal): Promise<number> {
    const foreground = await this.inspectForeground()
    if (foreground === undefined) {

View on GitHub (pinned to b150a551b8)

Solutions

1. Open a new terminal session; an exited terminal process cannot be reused.

When it happens

Trigger: Thrown at packages/subprocess/subprocess-local/src/terminal.ts:79 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/845bd0bd265aa7d4. Report an issue: GitHub.