我只用本地缓存，但是提示我redis没有配置？错误：no remote cache builder: default

我只用了本地缓存，配置是这样的。
jetcache:
statIntervalMinutes: 1
areaInCacheName: false
local:
default:
type: linkedhashmap
keyConvertor: fastjson
错误是：com.alicp.jetcache.CacheConfigException: no remote cache builder: default

怎么办？redis是一定要有吗？

The report provides the JetCache local-only configuration and the “no remote cache builder: default” exception, but no file or test is named. Start by tracing local cache setup and the exception path, then reproduce the configuration without Redis; done means the expected local-only behavior is confirmed and covered by an appropriate regression test or clarified documentation.

Written by the indexing model from the issue text.