I'm trying to set-up an old laptop running Ubuntu OS to mine Monero as explained here just for educational purposes. For this I tried creating a wallet as explained here. However I'm getting the following error,
Error: wallet failed to connect to daemon: http://localhost:18081.
Daemon either is not started or wrong port was passed.
Please make sure daemon is running or change the daemon address using the 'set_daemon' command.
I'm quite new to cryptocurrency and Monero in particular, can anyone tell me what is going wrong here? and how to fix it?