Failed to deploy contracts to ethermint with truffle and @truffle/hdwallet-provider.

[AaronZgl]

System info: [Include Ethermint commit, operating system name, and other relevant details]
MacSO 11.0.1
Ethermint commit : c15ba53
Truffle v5.1.51
@truffle/[email protected]

Steps to reproduce:

1. start node with init.sh
   ./init.sh

2. run the REST server and JSON-RPC
   ethermintcli rest-server --laddr "tcp://localhost:8545" --unlock-key mykey --chain-id ethermint-1 --trace

3. Edit contract with truffle

$ mkdir counter && cd counter
$ truffle init
$ cd contracts
$ vim Counter.sol
$ vim migrations/2_deploy_counter.js
$ npm init
$ npm install --save-dev @truffle/hdwallet-provider
$ vim truffle-config.js

4. deploy contract
   truffle migrate --reset --network development

Expected behavior: [What you expected to happen]
Contract should be deployed to ethermint network successfully.

Actual behavior: [What actually happened]
Contracts can not be successfully deployed to ethermint network.
There is the error:

But the contracts can be successfully deployed to ganache-cli network with same steps.

Additional info: [Include gist of relevant config, logs, etc.]

there is the code of Counter.sol:

pragma solidity ^0.5.11;

contract Counter {
  uint256 counter = 0;

  function add() public {
    counter++;
  }

  function subtract() public {
    counter--;
  }

  function getCounter() public view returns (uint256) {
    return counter;
  }
}

there is the code of 2_deploy_counter.js:

const Counter = artifacts.require("Counter");

module.exports = function (deployer) {
  deployer.deploy(Counter);
};

There is the code of truffle-config.js:

const HDWalletProvider = require('@truffle/hdwallet-provider');
const ethermint_mnemonic = "the mnemonic is generated when the ethermint node starts";

module.exports = {
  
  networks: {
    
    development: {
      provider: () => new HDWalletProvider(ethermint_mnemonic, `http://127.0.0.1:8545`),
      network_id: "*",       // Any network (default: none)
      gas: 5000000,          // Gas sent with each transaction
      gasPrice: 1000000000,  // 1 gwei (in wei)
    },
    
  },
  compilers: {
    solc: {
      version: "0.5.17",    // Fetch exact version from solc-bin (default: truffle's version)
    },
  },
};

[github-actions]

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