What causes "created notebook is not mounted" in siyuan-note/siyuan?

Re-run the import; transient mounting races usually resolve on retry

created notebook is not mounted

Error message

created notebook is not mounted

What it means

After importing, the kernel looks up the newly created notebook (Conf.Box(boxID)) to push a 'createnotebook' event and continue indexing. If the box is nil the notebook exists on disk but is not mounted/open in the workspace, so the import is marked incomplete and this internal error fails the task.

Source

Thrown at kernel/model/import_obsidian.go:1782

			removeObsidianTemp(taskID)
			return
		}
	}

	updateObsidianTask(taskID, ObsidianTaskStateIndexing, 95, "Indexing notebook")
	existed, err := Mount(boxID)
	if err != nil {
		result.Incomplete = true
		markObsidianNotebookIncomplete(boxID, notebookName)
		failObsidianTask(taskID, "indexing", err, result)
		removeObsidianTemp(taskID)
		return
	}
	box := Conf.Box(boxID)
	if box == nil {
		result.Incomplete = true
		markObsidianNotebookIncomplete(boxID, notebookName)
		failObsidianTask(taskID, "indexing", errors.New("created notebook is not mounted"), result)
		removeObsidianTemp(taskID)
		return
	}
	event := util.NewCmdResult("createnotebook", 0, util.PushModeBroadcast)
	event.Data = map[string]any{"box": box, "existed": existed}
	util.PushEvent(event)
	IncSync()
	removeObsidianTemp(taskID)

	obsidianTasksMu.Lock()
	if current := obsidianTasks[taskID]; current != nil && !isObsidianTerminalState(current.State) {
		current.Result = result
		finishObsidianTaskLocked(current, ObsidianTaskStateCompleted, "Import completed", "")
	}
	obsidianTasksMu.Unlock()
}

func revalidateObsidianVault(ctx context.Context, vault *obsidianVaultContext) error {

View on GitHub (pinned to 8641553a1f)

Solutions

Re-run the import; transient mounting races usually resolve on retry
Check the created notebook folder under data/ for a valid .siyuanconf; restore or delete the broken notebook folder and re-import
Open SiYuan settings - 笔记本 (Notebooks) and confirm the new notebook is mounted; re-mount it and re-index before retrying

Defensive patterns

Strategy: retry

Validate before calling

null

Try / catch

try { await apiImportObsidian(vaultPath); }
catch (e) {
  if (e.msg === 'created notebook is not mounted') {
    await sleep(1000); await apiImportObsidian(vaultPath); // transient mount race; retry once
  }
}

Prevention

Do not close notebooks or switch workspaces while importing
Keep the data/<boxID>/.siyuanconf intact and valid
Re-index after any manual changes to the data directory
Retry the import once before deeper debugging

When it happens

Trigger: Conf.Box(boxID) returns nil right after creating the notebook during the indexing phase — the notebook was created but not registered in the open-workspace configuration, e.g. its conf was not loaded or the notebook was closed/removed concurrently.

Common situations: Race with closing notebooks or switching workspaces during import; a corrupted or missing <boxID>/.siyuan/conf.json preventing the box from mounting; too many notebooks open such that the new one is not auto-mounted.

Understand the failure class

Background: "This is a bug, please report it": internal invariant violations, unreachable panics, and SNH errors explained — this error's family across 47 libraries.

Related errors

AI-assisted analysis of siyuan-note/siyuan@8641553a1f (2026-09-11). Data as JSON: /api/errors/0aabd8719e38e700. Report an issue: GitHub.