# Not verifying on eth scan **URL:** \ **Category:** Support\ **Created:** [May 1, 2021, 8:33pm UTC](https://forum.openzeppelin.com/t/not-verifying-on-eth-scan/7669 "2021-05-01T20:33:35Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![coderbang1](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/coderbang1/32/4675_2.png) [@coderbang1](https://forum.openzeppelin.com/u/coderbang1)\ **Post date:** [May 1, 2021, 8:33pm UTC](https://forum.openzeppelin.com/t/not-verifying-on-eth-scan/7669/1 "2021-05-01T20:33:35Z")
Hi, I tried to create a ERC20 token using the wizard here [https://docs.openzeppelin.com/contracts/4.x/wizard](https://docs.openzeppelin.com/contracts/4.x/wizard) For features, I checked (Burnable, Pausable, Snapshots, Permit), for access control I checked (Roles) Then after opening in Remix & Compiling, the code does not verify on [Etherscan.io](http://Etherscan.io), here is the code // SPDX-License-Identifier: MIT pragma solidity ^0.8.0; ``` import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol"; import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Snapshot.sol"; import "@openzeppelin/contracts/access/AccessControl.sol"; import "@openzeppelin/contracts/security/Pausable.sol"; import "@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol"; contract MyToken is ERC20, ERC20Burnable, ERC20Snapshot, AccessControl, Pausable, ERC20Permit { bytes32 public constant SNAPSHOT_ROLE = keccak256("SNAPSHOT_ROLE"); bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE"); constructor() ERC20("My Token", "MYTOKEN") ERC20Permit("My Token") { _setupRole(DEFAULT_ADMIN_ROLE, msg.sender); _setupRole(SNAPSHOT_ROLE, msg.sender); _setupRole(PAUSER_ROLE, msg.sender); _mint(msg.sender, 1000000000 * 10 ** decimals()); } function snapshot() public { require(hasRole(SNAPSHOT_ROLE, msg.sender)); _snapshot(); } function pause() public { require(hasRole(PAUSER_ROLE, msg.sender)); _pause(); } function unpause() public { require(hasRole(PAUSER_ROLE, msg.sender)); _unpause(); } function _beforeTokenTransfer(address from, address to, uint256 amount) internal whenNotPaused override(ERC20, ERC20Snapshot) { super._beforeTokenTransfer(from, to, amount); } } ``` ---
**Author:** ![Skyge](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/skyge/32/343_2.png) [@Skyge](https://forum.openzeppelin.com/u/Skyge)\ **Post date:** [May 1, 2021, 10:51pm UTC](https://forum.openzeppelin.com/t/not-verifying-on-eth-scan/7669/2 "2021-05-01T22:51:26Z")
I think you should verify your code manually, and I think this tutorial can help you: [Verify smart contract inheriting from OpenZeppelin Contracts](https://forum.openzeppelin.com/t/verify-smart-contract-inheriting-from-openzeppelin-contracts/4119) ---
**Author:** ![coderbang1](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/coderbang1/32/4675_2.png) [@coderbang1](https://forum.openzeppelin.com/u/coderbang1)\ **Post date:** [May 1, 2021, 11:06pm UTC](https://forum.openzeppelin.com/t/not-verifying-on-eth-scan/7669/3 "2021-05-01T23:06:33Z")
i did uplode in multi-file format that also gives me error ---
**Author:** ![coderbang1](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/coderbang1/32/4675_2.png) [@coderbang1](https://forum.openzeppelin.com/u/coderbang1)\ **Post date:** [May 1, 2021, 11:26pm UTC](https://forum.openzeppelin.com/t/not-verifying-on-eth-scan/7669/4 "2021-05-01T23:26:00Z")
``` here is the error ParserError: Source "IERC20.sol" not found: File import callback not supported --> ERC20.sol:5:1: | 5 | import "./IERC20.sol" | ^^^^^^^^^^^^^^^^^^^^^^ ParserError: Source "extensions/IERC20Metadata.sol" not found: File import callback not supported --> ERC20.sol:6:1: | 6 | import "./extensions/IERC20Metadata.sol" | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ParserError: Source "utils/Context.sol" not found: File import callback not supported --> ERC20.sol:7:1: | 7 | import "../../utils/Context.sol" | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ParserError: Source "@openzeppelin/contracts/token/ERC20/ERC20.sol" not found: File import callback not supported --> token.sol:4:1: | 4 | import "@openzeppelin/contracts/token/ERC20/ERC20.sol" | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ParserError: Source "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol" not found: File import callback not supported --> token.sol:5:1: | 5 | import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol" | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ParserError: Source "@openzeppelin/contracts/token/ERC20/extensions/ERC20Snapshot.sol" not found: File import callback not supported --> token.sol:6:1: | 6 | import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Snapshot.sol" | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ParserError: Source "@openzeppelin/contracts/access/AccessControl.sol" not found: File import callback not supported --> token.sol:7:1: | 7 | import "@openzeppelin/contracts/access/AccessControl.sol" | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ParserError: Source "@openzeppelin/contracts/security/Pausable.sol" not found: File import callback not supported --> token.sol:8:1: | 8 | import "@openzeppelin/contracts/security/Pausable.sol" | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ParserError: Source "@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol" not found: File import callback not supported --> token.sol:9:1: | 9 | import "@openzeppelin/contracts/token/ERC20/extensions/draft-ERC20Permit.sol" ``` ---
**Author:** ![Skyge](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/skyge/32/343_2.png) [@Skyge](https://forum.openzeppelin.com/u/Skyge)\ **Post date:** [May 1, 2021, 11:43pm UTC](https://forum.openzeppelin.com/t/not-verifying-on-eth-scan/7669/5 "2021-05-01T23:43:07Z")
It looks like you do not install dependency, try to run: ```auto npm i @openzeppelin/contracts ``` ---
**Author:** ![coderbang1](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.openzeppelin.com/coderbang1/32/4675_2.png) [@coderbang1](https://forum.openzeppelin.com/u/coderbang1)\ **Post date:** [May 1, 2021, 11:55pm UTC](https://forum.openzeppelin.com/t/not-verifying-on-eth-scan/7669/6 "2021-05-01T23:55:25Z")
i am using remix. its works fine in local enviroment