Build error

[nopnop2002]

My environment:

ESP-IDF version:v4.1-dev-369-g4dac7c7df

My operation:

rm sdkconfig
make clean
make menuconfig
make


CC build/audio_renderer/audio_renderer.o
/home/ESP32_OLED_webradio/components/audio_renderer/audio_renderer.c: In function 'render_samples':
/home/ESP32_OLED_webradio/components/audio_renderer/audio_renderer.c:90:13: error: implicit declaration of function 'i2s_write_bytes' [-Werror=implicit-function-declaration]
             i2s_write_bytes(renderer_instance->i2s_num, buf, len,
             ^
/home/ESP32_OLED_webradio/components/audio_renderer/audio_renderer.c:142:32: error: implicit declaration of function 'i2s_push_sample' [-Werror=implicit-function-declaration]
                 bytes_pushed = i2s_push_sample(renderer_instance->i2s_num,
                                ^
/home/ESP32_OLED_webradio/components/audio_renderer/audio_renderer.c: At top level:
cc1: warning: unrecognized command line option '-Wno-frame-address'