Ethereum Deployment Private Contract FAQ Summary

FAQ Question 1

Problem Description: Callback contain no result error:authentication Needed:password or unlock

The problem here is that the current account is not unlock and needs to be unlocked.
Switch to the Geth console:

common commands in Geth:

View the current Account list:

Eth.accounts

To view the commands supported by ETH:

Interested parties, you can consult the document in detail

New Account Creation

Personal.newaccount ()

Ore Digging/Stop digging

Miner.start ()

After the command is invoked, NULL is returned

Miner.stop ()

Returns true after the call command succeeds

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