Stuck in truffle compile

Question

When I run truffle compile it stuck forever after compiling contracts . I am importing openzeppelin library and using infura , ropsten and metamask to deploy contract on testnet. . Here is the output

Compiling ./contracts/Migrations.sol...
Compiling ./contracts/obaidminttoken.sol...
Compiling zeppelin-solidity/contracts/math/SafeMath.sol...
Compiling zeppelin-solidity/contracts/ownership/Ownable.sol...
Compiling zeppelin-solidity/contracts/token/ERC20/BasicToken.sol...
Compiling zeppelin-solidity/contracts/token/ERC20/ERC20.sol...
Compiling zeppelin-solidity/contracts/token/ERC20/ERC20Basic.sol...
Compiling zeppelin-solidity/contracts/token/ERC20/MintableToken.sol...
Compiling zeppelin-solidity/contracts/token/ERC20/StandardToken.sol...
Writing artifacts to ./build/contracts

Here is my truffle.js file

require('dotenv').config();
const HDWalletProvider = require("truffle-hdwallet-provider");
module.exports = {
  networks: {
    development: {
      host: "localhost",
      port: 7545,
      gas: 6500000,
      network_id: "5777"
    },
    ropsten: {
        provider: new HDWalletProvider(process.env.MNENOMIC, "https://ropsten.infura.io/v3/" + process.env.INFURA_API_KEY),
        network_id: 3,
        gas: 4500000
    },
  }
};

Answer 1

Check that the filename is the same as the contract's name, eg. if the contract's name is : Voting, name the file voting.sol.
If that doesn't work, try deleting json files under build/contracts/ and run truffle compile again.

For more info check out https://github.com/trufflesuite/truffle-migrate/issues/14

Answer 2

This issue fixed by wrapping HDWallet provider in truffle.js file . Here is an updated truffle.js code

require('dotenv').config();
const HDWalletProvider = require("truffle-hdwallet-provider");
module.exports = {
  networks: {
    development: {
      host: "localhost",
      port: 7545,
      gas: 6500000,
      network_id: "5777"
    },
    ropsten: {
        provider:function() { return new HDWalletProvider(process.env.MNENOMIC, "https://ropsten.infura.io/v3/" + process.env.INFURA_API_KEY);},
        network_id: 3,
        gas: 4500000
    },
  }
};