报错 [nested] nested path [properties] is not nested

win10，elasticsearch-7.4.1，elasticsearch插件v7.12.0
在步骤3. 前端模板之后运行就报这个错误了

{"error":{"root_cause":[{"type":"aggregation_execution_exception","reason":"[nested] nested path [properties] is not nested"}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"products","node":"qg_rl2zaQSawk96r2En4Uw","reason":{"type":"aggregation_execution_exception","reason":"[nested] nested path [properties] is not nested"}}]},"status":500}