truffle migrate --network rinkeby: Error encountered, bailing. Network state unknown

Question

All works with the local testrpc instance.

Now trying to deploy to rinkeby via the Infura site using the HDWalletProvider. Everything looks trivially configured... (unless I need to specifically unlock an account?)

But the migration doesn't work, failing on the 1_initial_migration.js which is a tiny contract.

 > truffle migrate --network rinkeby 
Using network 'rinkeby'.

Running migration: 1_initial_migration.js
  Deploying Migrations...
Error encountered, bailing. Network state unknown. Review successful transactions manually.
exceeds block gas limit
 > 

Anyone else see / resolve this ?

Answer 1

1. My gas setting in truffle.js:

   gas: 4300000 //may be 21000 - 3000000

   gasPrice: 20000000000

2. Your smart contract maybe a little complicated, cost more gas than setting, please kindly check and increase the "gasLimit" of genesis.json, the largest number can be 0xffffffff.

3. by the way, if you need mining in your ethereum node, set the difficulty of genesis.json a little low, for example "0x2000". Otherwise, it is easy to exceed time.

Hope it can help you.