Inheritance of constructor [duplicate]

Question

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• I've got an error while compiling.Use “constructor(…) { … }” instead 2 answers

Why does warning appear with inheritance of constructor?

contract MyToken is ERC721Token{
function MyToken(string _name, string _symbol) ERC721Token(_name, _symbol) public {
}

The content of the warning is

zeppelin-solidity/contracts/token/ERC721/ERC721Token.sol:38:3: Warning: Defining constructors as functions with the same name as the contract is deprecated. Use "constructor(...) { ... }" instead. function ERC721Token(string _name, string _symbol) public { ^ (Relevant source part starts here and spans across multiple lines). ,/C/twork/702_Ethereum/ERC-OPZ/myERC721/contracts/MyToken.sol:8:3: Warning: Defining constructors as functions with the same name as the contract is deprecated. Use "constructor(...) { ... }" instead. function MyToken(string _name, string _symbol) ERC721Token(_name, _symbol) public { ^ (Relevant source part starts here and spans across multiple lines).

I am using truffle v4.1.7 solidity v0.4.23

Thanking you in advance

Answer 1

Since the version 0.4.22 of Solidity, you don't define the constructor as the function with the same name than the contract, you have to use function constructor(myparams....) {...} from now on.

Read more here.