Geth error: fatal: could not list accounts: index 0 higher than number of accounts 0

Question

I'm trying to run the following command:

geth --datadir mychaindata --nodiscover --unlock 0 --mine 1

and getting the above error.

When I enter geth account list, I see two accounts.

What gives?

Answer 1

The option --datadir declare where are your data would be placed, the whole data includes keystores, database and so on. When you're invoking the command geth account list it's uses the default datadir (~/.ethereum). Looks like that directory doesn't contains any accounts. In order to force address you can use the --etherbase option:

geth --datadir mychaindata --nodiscover --unlock 0 --mine --etherbase YOUR_ADDRESS_GOES_HERE

_{Command-Line-Options}