API Reference > imodeljs-backend > IModelHost > IModelHostConfiguration > briefcaseCacheDir briefcaseCacheDir Deprecated Use IModelHostConfiguration.cacheDir instead to specify the root of all caches. Using this new option will cause a new cache structure and invalidate existing caches - i.e., the cache will be re-created in a new location on disk, and the existing cache may have to be manually cleaned out. If IModelHostConfiguration.cacheDir is also specified, this setting will take precedence for the briefcase cache briefcaseCacheDir: undefined | string The path where the cache of briefcases are stored. Defaults to path.join(KnownLocations.tmpdir, "Bentley/iModelJs/cache/") If overriding this, ensure it's set to a folder with complete access - it may have to be deleted and recreated. Defined in core/backend/src/IModelHost.ts Line 115 Last Updated: 11 June, 2024