P84

truffle migrate --network goerliを実行して、ガス代不足でデプロイ失敗。

$ truffle migrate --network goerli

Compiling your contracts...
===========================
> Everything is up to date, there is nothing to compile.



Migrations dry-run (simulation)
===============================
> Network name:    'goerli-fork'
> Network id:      5
> Block gas limit: 8000000 (0x7a1200)


1_initial_migration.js
======================

   Replacing 'Migrations'
   ----------------------

Error:  *** Deployment Failed ***

"Migrations" could not deploy due to insufficient funds
   * Account:  0x357D5b3B1527f642Da8765b98b4717e907a930eC
   * Balance:  0 wei
   * Message:  sender doesn't have enough funds to send tx. The upfront cost is: 584634000000000 and the sender's account only has: 0
   * Try:
      + Using an adequately funded account
      + If you are using a local Geth node, verify that your node is synced.

MetaMaskを確認したら、確かにETHが入っている。やっぱり、設定などの間違いか。。。

truffle-config.jsを調べたら、やっぱり、デプロイ先をローカルのGanache　（http://127.0.0.1:8545）　に向いている。

    goerli: {
      provider: () => {
        const mnemonic = process.env["MNEMONIC"]
        return new HDWallterProvider(mnemonic, "http://127.0.0.1:8545");
      },
      network_id: "*",
    },

MetaMaskのネットワーク設定を開き、goerliテストネットワークのRPCのURLをコピーして、GanacheのURLを置き換える。

    goerli: {
      provider: () => {
        const mnemonic = process.env["MNEMONIC"]
        return new HDWallterProvider(mnemonic, "https://goerli.infura.io/v3/9aa3d95b3bc440fa88ea12eaa4456161");
      },
      network_id: "*",
    },

truffle migrate --network goerliを再実行、デプロイは上手くいった。