NousResearch/hermes-agent · error · Error

Could not read ${label}

Error message

Could not read ${label}

What it means

Error "Could not read ${label}" thrown in NousResearch/hermes-agent.

Source

Thrown at apps/desktop/src/app/session/hooks/use-prompt-actions/index.ts:152

  // Read bytes/paths ONCE, outside the retry. Only the session-scoped RPC is
  // replayed on recovery — re-reading a multi-MB file to retry a dead session
  // id would double the disk/IPC cost of every recovered attach.
  let imagePayload: Awaited<ReturnType<typeof readImageForRemoteAttach>> | null = null
  let fileDataUrl: null | string = null

  if (uploadBytes) {
    try {
      if (attachment.kind === 'image') {
        imagePayload = await readImageForRemoteAttach(path)
      } else {
        fileDataUrl = await readFileDataUrlForAttach(path)
      }
    } catch (err) {
      throw friendlyRemoteAttachError(err, label)
    }

    if (attachment.kind === 'image' ? !imagePayload : !fileDataUrl) {
      throw new Error(`Could not read ${label}`)
    }
  }

  const stageForSession = async (liveSessionId: string): Promise<ComposerAttachment> => {
    if (attachment.kind === 'image') {
      const result = imagePayload
        ? await requestGateway<ImageAttachResponse>('image.attach_bytes', {
            session_id: liveSessionId,
            content_base64: imagePayload.contentBase64,
            filename: imagePayload.filename
          })
        : await requestGateway<ImageAttachResponse>('image.attach', {
            path,
            session_id: liveSessionId
          })

      if (!result.attached) {
        throw new Error(result.message || `Could not attach ${label}`)

View on GitHub (pinned to c896c09c42)

Solutions

1. Check that the file still exists at the path and is readable.
2. Verify file permissions and that the path is inside an allowed workspace.
3. Re-attach the file from its current location.

When it happens

Trigger: Thrown at apps/desktop/src/app/session/hooks/use-prompt-actions/index.ts:152 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/219c8e92036e83c9. Report an issue: GitHub.