Novice coder here so hopefully somebody has the patience to answer my (probably incomplete) question, apologies in advance if not enough info.

I am trying to create a scenario whereby a user can create a child token from the main contract (and then later on a (grand[?])child coin from that token).

I have looked up various documentation and Q&As and have cobbled together the code below. My problem is Remix will not compile the parent contract, saying that child.sol cannot be found, even though it is 2 steps away from the parent. I'm fairly sure the problem is within the Child.sol contract as I've just C+P'd the info, any help is greatly appreciated.

Thank you.

pragma solidity ^0.4.21;

import "./EIP20Interface.sol";
import "../Child.sol";


contract MyTestToken is EIP20Interface {

uint256 constant private MAX_UINT256 = 2**256 - 1;
mapping (address => uint256) public balances;
mapping (address => mapping (address => uint256)) public allowed;

string public name;                   
uint8 public decimals;              
string public symbol;

function MyTestToken(
    uint256 _initialAmount,
    string _tokenName,
    uint8 _decimalUnits,
    string _tokenSymbol
) public {
    balances[msg.sender] = _initialAmount;               
    totalSupply = _initialAmount;                        
    name = _tokenName;                                  
    decimals = _decimalUnits;                            
    symbol = _tokenSymbol;                               
}

function transfer(address _to, uint256 _value) public returns (bool success) {
    require(balances[msg.sender] >= _value);
    balances[msg.sender] -= _value;
    balances[_to] += _value;
    emit Transfer(msg.sender, _to, _value); 
    return true;
}

function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
    uint256 allowance = allowed[_from][msg.sender];
    require(balances[_from] >= _value && allowance >= _value);
    balances[_to] += _value;
    balances[_from] -= _value;
    if (allowance < MAX_UINT256) {
        allowed[_from][msg.sender] -= _value;
    }
    emit Transfer(_from, _to, _value); 
    return true;
}

function balanceOf(address _owner) public view returns (uint256 balance) {
    return balances[_owner];
}

function approve(address _spender, uint256 _value) public returns (bool success) {
    allowed[msg.sender][_spender] = _value;
    emit Approval(msg.sender, _spender, _value);
    return true;
}

function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
    return allowed[_owner][_spender];
}

mapping(bytes32 => Child) childList;

function spawnChild(bytes32 childId) {
Child current = new Child();
childList[childId] = current;
}

function callChildFunction(bytes32 childId) {
childList[childId].theChildfunction();
 } 

}


pragma solidity ^0.4.21;

contract DataItem {
bytes32 key;
string value;

function DataItem(bytes32 k, string v) {
    key = k;
    value = v;
 }
}
contract DAppInterface {
mapping(bytes32 => address) public dataItems;

function addDataItem(bytes32 k, string v) external {
    dataItems[k] = new DataItem(k, v);
 }
}