linshenkx/prompt-optimizer · error · FavoriteTagNotFoundError

Tag not found: ${error.tag || ''}

Error message

Tag not found: ${error.tag || ''}

What it means

Main process returned TAG_NOT_FOUND; the proxy throws FavoriteTagNotFoundError with the tag name. The referenced tag does not exist in the tag store. (Note: the literal message in this code path is the tag name itself; the prefixed 'Tag not found:' form is the canonical message of FavoriteTagNotFoundError.)

Source

Thrown at packages/core/src/services/favorite/electron-proxy.ts:76

      if (error.code === 'CATEGORY_NOT_FOUND') {
        throw new FavoriteCategoryNotFoundError(error.id || '');
      }
      if (error.code === 'VALIDATION_ERROR') {
        throw new FavoriteValidationError(error.message || '');
      }
      if (error.code === 'STORAGE_ERROR') {
        throw new FavoriteStorageError(error.message || '');
      }
      // Legacy: category already exists
      if (error.code === 'CATEGORY_ALREADY_EXISTS') {
        throw new FavoriteValidationError(error.message || 'Category already exists')
      }
      // 标签相关错误
      if (error.code === 'TAG_ALREADY_EXISTS') {
        throw new FavoriteTagAlreadyExistsError(error.tag || '');
      }
      if (error.code === 'TAG_NOT_FOUND') {
        throw new FavoriteTagNotFoundError(error.tag || '');
      }
      if (error.code === 'TAG_ERROR') {
        throw new FavoriteTagError(FAVORITE_ERROR_CODES.TAG_ERROR, error.message || '', { details: error.message || '' });
      }
      // 数据迁移和导入导出错误
      if (error.code === 'MIGRATION_ERROR') {
        throw new FavoriteMigrationError(error.message || '', error.cause);
      }
      if (error.code === 'IMPORT_EXPORT_ERROR') {
        throw new FavoriteImportExportError(error.message || '', error.cause, error.details);
      }
      // Fallback: preserve message as details for i18n-friendly error
      throw new FavoriteError(FAVORITE_ERROR_CODES.STORAGE_ERROR, error.message || 'Unknown error', {
        details: error.message || 'Unknown error',
      });
    }
  }

View on GitHub (pinned to 3e677b1d9f)

Solutions

1. Refresh the tag list and retry with a current tag
2. Catch FavoriteTagNotFoundError and remove the stale tag from UI selection
3. Reconcile tag state after any delete/import operation

Example fix

// before
await mgr.deleteTag(tag);
// after
try { await mgr.deleteTag(tag); }
catch (e) { if (e instanceof FavoriteTagNotFoundError) return; throw e; }

const current = await mgr.getTags();
const valid = current.some(t => t.name === tag);

const isTagNotFound = (e: unknown): e is FavoriteTagNotFoundError => e instanceof FavoriteTagNotFoundError;

try { await mgr.deleteTag(tag); } catch (e) { if (isTagNotFound(e)) return; throw e; }

When it happens

Trigger: updateTag/deleteTag/assignTag operations referencing a tag that was deleted, via the Electron proxy.

Common situations: Stale tag list in UI after deletion elsewhere; tag removed during import/migration; race between tag picker refresh and delete.

Understand the failure class

Background: "Not found" and "does not exist" errors: why "Task not found", "No such folder", and "Can't find" fire when a lookup comes back empty — this error's family across 14 libraries.

Related errors

• FAVORITE_NOT_FOUND
• CATEGORY_NOT_FOUND
• TAG_ALREADY_EXISTS
• TAG_ERROR
• FAVORITE_ALREADY_EXISTS

AI-assisted analysis of linshenkx/prompt-optimizer@3e677b1d9f (2026-08-27). Data as JSON: /api/errors/d36a278c5be29016. Report an issue: GitHub.