Non working solidity code.

Manager.sol

pragma solidity ^0.5.0;

import "zos-lib/contracts/Initializable.sol";
import "openzeppelin-eth/contracts/token/ERC20/StandaloneERC20.sol";

contract Manager is Initializable {

    function createStorage(string memory _name, string memory _symbol, 
    uint8 _decimals, uint256 _initialSupply, address _initialHolder, address[] memory _minters, 
    address[] memory _pausers) 
    public{
        
    StandaloneERC20 erc20 = new StandaloneERC20();
    erc20.initialize(_name, _symbol,_decimals, _initialSupply, _initialHolder,_minters,_pausers);

    }

}