browser/ballot.sol:61:13: Warning: Using contract member "balance" inherited from the address type is deprecated. Convert the contract to "address" type to access the member.
require(this.balance >= 1000000000000000);
What does it mean "convert the contract to address" type? How do I get the address of this
?
I got this error in 0.4.21 of Solidity through Remix browser.