How to upload sketch in D1 Esp8266 WiFi board because this board not found in library. IDE2.2.1
There is a dedicated section for IDE 2.x; topic moved.
Did you install the board package for the ESP8266? In the IDE, go to file / preferences and specify the additional URL (https://arduino.esp8266.com/stable/package_esp8266com_index.json) as shown below and save the change.
Next go to the board manager and search for the ESP8266 boards and install.
Note:
The images show IDE 1.8.19; the instructions for IDE 2.x are the same but the looks might differ a bit.
Maybe there is confusion between library and board package?
PS
I'm using a Wemos D1 Mini.
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