New arduino mqtt library

Help me… I want to add esp8266 to arduino ide … I dont want to use boards manager because he sent to me error message …i want another way

What error? Boards manager is the best way. You need to add the below address to your additional boards manager URL under the IDE preferences. Then go into boards manager and install the ESP8266 community boards.

I agree with @vapor83, best to figure out the board manager error. I’m not sure if you can manually install boards, I’m not finding anything immediately on google.