2
Just for the others who might be facing the same issue (it took me quite a while to fix it).
The problem I faced was that I was calling function addLiquidityETH() without sending the ethers to Uniswap smart contract, so {value: msg.value} has to be added to the call:
uniswap.addLiquidityETH{ value: msg.value }(
token,
amountTokenDesired,
...
1
You have corrected it.
The problem was you cannot access a non-existent element of an array.
So, so given c = 0, and car.length = 0 you cannot access the first non-existent row of the array which is numbered 0. If row 0 existed, then the array length would be 1. When you try car[0] on an empty array, you get an error because you are out of bounds.
So, your ...
1
Just add calldata to the parameter. So the signature should be:
function performBonusCredit(string[][] calldata _toPayArgs) external payable {
You can read more about these data location markers here: https://docs.soliditylang.org/en/v0.8.0/types.html#data-location
1
Solidity enables constructors which have code executed at contract creation. So you need to instantiate owner in the constructor to catch the contract deployer address :
address payable owner;
constructor() public {
owner = msg.sender;
}
There are also standardized contracts to manage ownership. Exemple of implementation can be found here : https://github....
1
Your array is composed of Proposal but you are trying to push a 0 into a struct member.
You can only push a Proposal on to an array of Proposal. Try this:
pragma solidity 0.7.6;
// SPDX-License-Identifier: UNLICENSED
contract Vote {
struct Proposal {
uint votecount;
}
Proposal[] proposals;
constructor(uint ...
1
The Proposal[] proposal declaration in your code is of a storage array.
As such, you don't need to initialize it with proposal = new Proposal[](...);.
You can simply push into it as many items as you'd like.
The only thing actually missing there is an access-level (public/internal/private).
As with regards to your push attempt, simply change this:
proposal....
1
Just to add into Shane's answer, if you are testing with ganache-cli,
you can also do this:
const ganache = require('ganache-cli');
const Web3 = require('web3');
const options = { a: 100 }; // NO OF ACCOUNTS
const provider = ganache.provider(options);
const web3 = new Web3(provider);
I hope that helps.
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