NousResearch/hermes-agent · error · Error

resume returned no session id

Error message

resume returned no session id

What it means

Error "resume returned no session id" thrown in NousResearch/hermes-agent.

Source

Thrown at apps/desktop/src/app/contrib/hooks/use-session-tile-delegate.ts:125

        // reading messages) without a profile lets the gateway fall back to the
        // launch-profile DB and fork the conversation into the wrong profile —
        // the same cross-profile bleed the recovery resumes had (#67603).
        const profile = await resolveSessionProfile(storedSessionId)

        const [prefetch, resumed] = await Promise.all([
          getLatestSessionMessages(storedSessionId, profile).catch(() => null),
          requestGateway<SessionResumeResponse>('session.resume', {
            session_id: storedSessionId,
            cols: 96,
            omit_messages: true,
            ...(profile ? { profile } : {})
          })
        ])

        const runtimeId = resumed?.session_id

        if (!runtimeId) {
          throw new Error('resume returned no session id')
        }

        updateSessionState(
          runtimeId,
          state => ({
            ...state,
            busy: Boolean(resumed?.info?.running),
            messages:
              state.messages.length > 0 ? state.messages : toChatMessages(prefetch?.messages ?? resumed?.messages ?? [])
          }),
          storedSessionId
        )

        return runtimeId
      },
      submitToSession: async (runtimeId, text) => {
        await withSessionNotFoundResume(
          runtimeId,

View on GitHub (pinned to c896c09c42)

Solutions

1. Retry the resume; the gateway returned no session id, usually due to a transient disconnect.
2. Start a new session if the old one no longer exists on the backend.
3. Check gateway connectivity and confirm the session id still exists.

When it happens

Trigger: Thrown at apps/desktop/src/app/contrib/hooks/use-session-tile-delegate.ts:125 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of NousResearch/hermes-agent@c896c09c42 (2026-08-14). Data as JSON: /api/errors/ebf162586b9634a6. Report an issue: GitHub.