问题描述
我在迁移过程中遇到问题，它显示：Artifacts are from different compiler runs
我认为问题出在编译上，我看到合同不止一次编译：
Compiling @openzeppelin/contracts-ethereum-package/contracts/GSN/Context.sol
Compiling @openzeppelin/contracts-ethereum-package/contracts/Initializable.sol
Compiling @openzeppelin/contracts-ethereum-package/contracts/access/AccessControl.sol
Compiling @openzeppelin/contracts-ethereum-package/contracts/access/Ownable.sol
Compiling @openzeppelin/contracts-ethereum-package/contracts/math/SafeMath.sol
Compiling @openzeppelin/contracts-ethereum-package/contracts/token/ERC20/ERC20.sol
Compiling @openzeppelin/contracts-ethereum-package/contracts/token/ERC20/ERC20Burnable.sol
Compiling @openzeppelin/contracts-ethereum-package/contracts/token/ERC20/SafeERC20.sol
Compiling @openzeppelin/contracts-ethereum-package/contracts/utils/Reentrancyguard.sol
Compiling @openzeppelin\contracts-ethereum-package\contracts\GSN\Context.sol
Compiling @openzeppelin\contracts-ethereum-package\contracts\Initializable.sol
Compiling @openzeppelin\contracts-ethereum-package\contracts\math\SafeMath.sol
Compiling @openzeppelin\contracts-ethereum-package\contracts\token\ERC20\ERC20.sol
Compiling @openzeppelin\contracts-ethereum-package\contracts\token\ERC20\IERC20.sol
Compiling @openzeppelin\contracts-ethereum-package\contracts\utils\Address.sol
Compiling @openzeppelin\contracts-ethereum-package\contracts\utils\EnumerableSet.sol
Compiling .\contracts\Migrations.sol
Compiling .\contracts\Modules\Addressprovider.sol
Compiling .\contracts\Modules\SchoolModule.sol
Compiling .\contracts\Modules\OracleModule.sol
Compiling .\contracts\Modules\ClassModule.sol
Compiling .\contracts\City\City.sol
Compiling .\contracts\inc\Base.sol
Compiling .\contracts\inc\CoreLibrary.sol
Compiling .\contracts\Modules\Addressprovider.sol
Compiling .\contracts\Modules\SchoolModule.sol
Compiling .\contracts\Modules\OracleModule.sol
Compiling .\contracts\Modules\ClassModule.sol
Compiling .\contracts\City\City.sol
Compiling .\contracts\inc\Base.sol
Compiling .\contracts\inc\CoreLibrary.sol
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
如果你已经找到好的解决方法，欢迎将解决方案带上本链接一起发送给小编。
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