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Unable publish source code with solidity version >= 0.8.0

See original GitHub issue

Environment information

brownie Version: 1.14.6
ganache-cli Version: 0.8.4
solc Version: 0.8.4
Python Version: 3.6.9
OS: linux

What was wrong?

Every time when I try publish multifile source on Etherscan with sol version more then 0.8.0 error is occur.

Verification complete. Result: Fail - Unable to verify

But when i just change solidity version in pragma - all is ok.

I have check in console First.get_verification_info() - So in case sol >= 0.8.0 function return only
first file in sources.

At the same time, the deployment goes well in both cases.

Example sources are below.

pragma solidity ^0.7.4;

File 1 (First.sol)

// SPDX-License-Identifier: MIT
pragma solidity ^0.7.4;
import "./Second.sol";
contract First is Second {
    function name() public view  returns (address) {
        return address(this);
    } 
    function symbol() public view  returns (string memory) {
        return "SYM";
    }
}

File 2 (Second.sol)

// SPDX-License-Identifier: MIT
pragma solidity ^0.7.4;
contract Second {
    function totalSupply() external view returns (uint256) {
        return 7777777777;
    }
}

First.get_verification_info() output

>>> First.get_verification_info()
{
    'bytecode_len': 770,
    'compiler_version': "0.7.4+commit.3f05b770",
    'contract_name': "First",
    'flattened_source': "// SPDX-License-Identifier: MIT

pragma solidity 0.7.4;



// Part: Second

contract Second {
    function totalSupply() external view returns (uint256) {
        return 7777777777;
    }
}

// File: First.sol

contract First is Second {

    function name() public view  returns (address) {
        return address(this);
    }
    
    function symbol() public view  returns (string memory) {
        return "SYM";
    }
	
}
",
    'license_identifier': "MIT",
    'optimizer_enabled': True,
    'optimizer_runs': 200
}

pragma solidity ^0.8.4;

File 1 (First.sol)

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "./Second.sol";
contract First is Second {
    function name() public view  returns (address) {
        return address(this);
    } 
    function symbol() public view  returns (string memory) {
        return "SYM";
    }
}

File 2 (Second.sol)

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
contract Second {
    function totalSupply() external view returns (uint256) {
        return 7777777777;
    }
}

First.get_verification_info() output

Brownie environment is ready.
>>> First.get_verification_info()
{
    'bytecode_len': 602,
    'compiler_version': "0.8.4+commit.c7e474f2",
    'contract_name': "First",
    'flattened_source': "// SPDX-License-Identifier: MIT

pragma solidity 0.8.4;



// File: First.sol

contract First is Second {

    function name() public view  returns (address) {
        return address(this);
    }

    function symbol() public view  returns (string memory) {
        return "SYM";
    }
	
}
",
    'license_identifier': "MIT",
    'optimizer_enabled': True,
    'optimizer_runs': 200
}

Issue Analytics

State:
Created 2 years ago
Reactions:2
Comments:10 (6 by maintainers)

Top GitHub Comments

1reaction

iamdefinitelyahumancommented, Jul 26, 2021

is this fixed in v1.15.2 ?

1reaction

iamdefinitelyahumancommented, Jun 17, 2021

I think the issue is present from 0.8.4 onward. Not sure what changed in that version, but something happened that broke everything.

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