When calling transferFrom it uses address 0x00000 instead of the address I am passing to it. I have insured the token is minted when constructed and ...
When calling transferFrom it uses address 0x00000 instead of the address I am passing to it. I have insured the token is minted when constructed and ...
I just wrote a simple code to test openzeplin Safemath library. I am using the latest version of remix ide and compiling for ^0.5.0. Remix is using 0. ...
I have a contract that inherits from Open Zeppelin's Ownable contract. There is a method payFees() in my contract that is expected to transfer funds t ...
I'm studying Solidity and I couldn't understand what does [!] mean in ⑨⑫⑬. What does it mean? And, how to use it? Could you give any advice, please ...
Function to exchange ERC721 Tokens between two addresses. I am implementing this on truffle and openzeppelin 2.10. Two different tokens should be exch ...
I have been working on ERC20 token development. My code is written using solidity and zeppelin frameworks. So far I have used the test networks like ...
I'm trying to deploy OpenZeppelin PaymentSplitter.sol but I'm getting the following error in Remix: I've tried passing: but each one produces th ...
I've followed a tutorial centered in the creation of an ICO and a Crowdsale (based on the ICO that I've created). It's a very classic tutorial, I kno ...
my intent is making ERC721 token can transfer by my ERC20 token only the transfer flow is Buyer approve ERC20 to Seller. Seller transfer ERC721 ...
How connect SafeMath.sol from external(non-local) resourses? ...