tronbox migrate error: timeout of 30000ms exceeded

[whitespur]

My log as below:
Using network 'shasta'.
Running migration: 1_initial_migration.js
Deploying Migrations...
ERROR: timeout of 30000ms exceeded

I use the latest tronbox
Tronbox v2.3.0 (core: 4.1.13)
Solidity v0.4.24 (tron-solc)
node version:
v8.11.3
In my test account,I have 29444 trx,and I've frozen 20000 trx.
console:
tronbox migrate --reset --network shasta
my config:
shasta: {
privateKey: 'cb0a71f555994dc693b69e935e4665962724ae63698b756f8053698ecc8368d8',
consume_user_resource_percent: 30,
fee_limit: 100000000,
fullNode: "https://api.shasta.trongrid.io",
solidityNode: "https://api.shasta.trongrid.io",
eventServer: "https://api.shasta.trongrid.io",
network_id: "*"
},

[sullof]

That is a networking issue. Probably Shasta was not responding at that time. We have restarted it recently, due to an issue with a witness, and if you tried to migrate during the initial syncing it is very possible that it took long time to respond.
In a future version we will allow to set a longer timeout. I will keep this issue open as a reminder.