saber

Thank you,master.I have another problem  while using knn_fit and knn_predict,it just use a few time,but when using cross validation predicton then using f1_score() it cost me lots of time,...

用户:Warrior 序号 完成时间 算法内容 完成进度 更新时间 1 2018-12-10 安装 100% 2018-12-10 2 2018-12-11 学习（教程） 100% 2018-12-10 3 2018-12-12 概述 100% 2018-12-12 4 2018-12-14 基本分类 100% 2018-12-12 5 2018-12-16 文本分类 100%...

same error `2 validation errors for ChatVectorDBChain chain extra fields not permitted (type=value_error.extra) retriever extra fields not permitted (type=value_error.extra`