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Questions - smartcontracts

Problem Compiling librocksdb-sys v6.11.4 on NEAR Protocol

I am pretty new in the blockchain world and I am trying to implement the NFT example on NEAR protocol: https://github.com/near-examples/NFT. I am working on WSL (Ubuntu 20.04.3) installed in Windows 1...
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Jorge Castillo

rust

clang

blockchain

smartcontracts

nearprotocol

Votes: 0

Answers: 0

constructor through inheritance

so I'm trying out an example of using a constructor with inheritance but the remix ide is returning an error, which isn't the case on the course I'm following. Any idea of what might be causing the er...
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TheReal Dude

solidity

smartcontracts

Votes: 0

Answers: 1

Latest Answer

The semicolon ; doesn't belong after the block. (Empty block in your case {}) Correct syntax: // remove the semicolon constructor (string memory _name) myConstruct(_name) {}
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Petr Hejda

msg.value raises error and doesn't send eth to contract

I am trying to write a simple Contract in Remix and cannot find a solution for the following problem: Trying to transfer a specific amount of Ethereum to the contract. The contract compiles and deploy...
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SQU

blockchain

ethereum

solidity

smartcontracts

Votes: 0

Answers: 1

Latest Answer

The third screenshot shows that you're sending 0 wei along with the transaction. So the require condition in your Solidity code fails, as 0 is not more than 0.02 ether. A contract is not able to pull ...
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Petr Hejda

Can't transfer ETH from swap smart contract to user

I try to send back ether when user sell token in swap, and i have that error: My solidity pragma: pragma solidity >=0.4.22 <0.9.0; project:/contracts/ANQSwap.sol:33:9: ParserError: Expected prim...
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anteqkois

solidity

smartcontracts

Votes: 0

Answers: 1

Latest Answer

Fixed error I added one pragma version to all .sol file pragma solidity ^0.8.0 payable(msg.sender).transfer(etherToSendBack); Code above works. I leave this question for other dev if they encountern ...
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anteqkois

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