I have the same problem, too. I used Mint 18.2 gnucash 2.6.17 Finance::Quote 1.47 Pear 5.22.1 had added ALPHAVANTAGE API key in the end of the environment file, but the ALPHAVANTAGE didn't list at the security quote source. -- Sent from: http://gnucash.1415818.n4.nabble.com/GnuCash-User-f1415819.html