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ViewsError encountered during contract execution [stack underflow (0 <=> 2)]
I'm developing an ERC721 contract. Whenever i call my mint function, i get this error :
Error encountered during contract execution [stack underflow (0 <=> 2)]
My function contains nothing but a simple require and return statement.
Any Help would be very much appriciated
I then downgraded to Sol 0.6.6 But i keep getting the same issue. Even meta mask shows this message when im about to confirm the transaction :
This is my Mint function :
function Mint() notBroke external payable returns (uint256) {
require(msg.value >= 0.05 ether, 'You didnt pay enough Eth Buddy :/');
return 1;
}
This is My notBroke Modifier :
modifier notBroke() {
require(address(this).balance > 0 ether,"You Broke");
_;
}
And this is how I am committing the transaction from the Front end (using meta mask) :
const transactionParameters = {
to: Contract.address,
from: props.account, // must match user's active address.
value: parseInt(Web3.utils.toWei("0.05", 'ether')).toString(16),
data: web3.eth.abi.encodeFunctionCall(
{
"inputs": [],
"name": "Mint",
"outputs": [
{
"internalType": "uint256",
"name": "",
"type": "uint256"
}
],
"stateMutability": "payable",
"type": "function"
},[]
),
chainId: `0x${parseInt(props.network)}`, // Used to prevent transaction reuse across blockchains. Auto-filled by MetaMask.
};
await window.ethereum.request({
method: 'eth_sendTransaction',
params: [transactionParameters],
}).then( (result) => {
resolve(result)
}).catch((error)=> resolve(error))
And this is whats shown on Etherscan :
2 answers
Answer question0
Here you have added modifier Which means your contract should have balance greater then 0, so at first time your contract will have 0 ether so it will revert transaction, please try to check balance of your contract and I think so you should check balance user who want to mint token
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The modifier throws an exception (effectively reverting the transaction) with message "You Broke" if the contract address (not the sender address) has 0 balance.
If you want to update the modifier to revert only if the sender address has 0 balance, you need to use msg.sender instead of address(this):
require(msg.sender.balance > 0 ether,"You Broke");