ESP32 file esp_http_server.h not found

Trivial quesiton aI think but I am a beginner…
PlatfromIO on VScode (1.29)
I work with ESP32 and ESP-IDF framewrok updated to 1.5.0 version

I created my new prject with SPI interface and work well
Now I would like to add wifi interface with web server but compilation not found the
“esp_http_server.h” file

Thanks for help

See examples here platform-espressif32/examples at develop · platformio/platform-espressif32 · GitHub