Esp32-c3 introductory tutorial question ⑩ - error: implicit declaration of function 'ESP_ blufi_ close‘；

One 、 Preface

This article is based on VS Code IDE Programming 、 compile 、 download 、 Operation, etc
Please refer to the basic introduction chapter ：ESP32-C3 Introductory tutorial The basic chapter ①—— be based on VS Code structure Hello World
For an outline of the tutorial directory, please refer to ：ESP32-C3 Introductory tutorial —— Reading guide

Two 、 Find the problem

• This question is quite strange , Same code , The company's computer is ok , There is something wrong with the computer at home
• But the two environments are different . The company computer environment is idf-v4.3, The computer environment at home is idf-v4.4
• But this kind of problem is also easy to solve , Find next esp_blufi_close In which header file is it defined , Add a header file

../main/wifi/smartconfig.c: In function 'example_event_callback':
../main/wifi/smartconfig.c:112:9: error: i