Defined Monitor Speed in platform.ini is 115200 .... but Terminal ( com10: ) is configured with 9600 baud

If you write monitor_speed in the lib_deps list, of course it will try to search for that package and won’t find it.

You need to correct the syntax of your platformio.ini to

[env:esp32-s3-devkitc-1]
platform = espressif32
board = esp32-s3-devkitc-1
framework = arduino
monitor_speed = 115200
lib_deps =
   ottowinter/ESPAsyncWebServer-esphome@^3.0.0
   adafruit/Adafruit NeoPixel@^1.10.7
   arduino-libraries/Arduino_JSON@^0.2.0
   makuna/RTC@^2.3.5
   adafruit/Adafruit SSD1306@^2.5.7
1 Like