與智能合約互動時出現錯誤

首先這裡是程式碼

var web3 = new Web3(Web3.givenProvider);
var contractInstance;
var x = 0
$(document).ready(function() {
   window.ethereum.enable().then(function(accounts){
     contractInstance = new web3.eth.Contract(window.abi, "0xe6f4FDF7110B0412183F46896666CB55fab1d85A", {from: accounts[0]});
   });
   $("#get_data_button").click(fetchAndDisplay);
});
function fetchAndDisplay(){
 contractInstance.methods.betxc(x).send({value: web3.utils.toWei("1", "ether")}).then(function(res){
   if(res==0)
   console.log("you won!!!!!")
   else {
     console.log("you lost")
   }
 })
 };

這裡是智能合約程式碼（我嘗試使用 remix 來查找錯誤，但那裡一切正常，我可以完美地與合約互動。這讓我認為錯誤可能在 main.js 文件中，即上面的那個）

pragma solidity >=0.4.22 <0.9.0;
contract cointoss {
   event Won(string);
   event Def(string);
   uint monysent;
   uint tot;
   modifier costs(uint cost){
       require(msg.value >= cost);
       _;
   }
   string[] public data;
   function random() public view returns(uint){
       return block.timestamp % 2;
   }
   function  betxc(uint numb) payable public costs(0.01 ether) returns(uint){
       uint max= random();
       tot = tot + msg.value;
       if (max==numb){

           msg.sender.transfer(msg.value*2);
           tot -= msg.value*2;
           emit Won("somebody won");
       }
       emit Def("the contact interaction finished");
       return max;
}
}

這是我在錯誤中遇到的錯誤（我在元遮罩中也出現錯誤“ALERT：交易錯誤。合約程式碼中引發異常”，我無法直接將資金發送到合約地址，如果最後的資訊對您有幫助)

MetaMask - RPC Error: Error: [ethjs-query] while formatting outputs from RPC '{"value":{"code":-32603,"data":{"message":"VM Exception while processing transaction: revert","code":-32000,"data":{"0xccb22b990e1c56d2f45ad4ada4143c8ea721c924e875cd62601313d7402d3ea8":{"error":"revert","program_counter":46,"return":"0x"},"stack":"RuntimeError: VM Exception while processing transaction: revert\n    at Function.RuntimeError.fromResults (/tmp/.mount_ganachYMHaCq/resources/static/node/node_modules/ganache-core/lib/utils/runtimeerror.js:94:13)\n    at BlockchainDouble.processBlock (/tmp/.mount_ganachYMHaCq/resources/static/node/node_modules/ganache-core/lib/blockchain_double.js:627:24)\n    at runMicrotasks (<anonymous>)\n    at processTicksAndRejections (internal/process/task_queues.js:93:5)","name":"RuntimeError"}}}}'
Object { code: -32603, message: "Error: [ethjs-query] while formatting outputs from RPC '{\"value\":{\"code\":-32603,\"data\":{\"message\":\"VM Exception while processing transaction: revert\",\"code\":-32000,\"data\":{\"0xccb22b990e1c56d2f45ad4ada4143c8ea721c924e875cd62601313d7402d3ea8\":{\"error\":\"revert\",\"program_counter\":46,\"return\":\"0x\"},\"stack\":\"RuntimeError: VM Exception while processing transaction: revert\\n    at Function.RuntimeError.fromResults (/tmp/.mount_ganachYMHaCq/resources/static/node/node_modules/ganache-core/lib/utils/runtimeerror.js:94:13)\\n    at BlockchainDouble.processBlock (/tmp/.mount_ganachYMHaCq/resources/static/node/node_modules/ganache-core/lib/blockchain_double.js:627:24)\\n    at runMicrotasks (<anonymous>)\\n    at processTicksAndRejections (internal/process/task_queues.js:93:5)\",\"name\":\"RuntimeError\"}}}}'" }
inpage.js:1:24326
Uncaught (in promise)
Object { code: -32603, message: "Error: [ethjs-query] while formatting outputs from RPC '{\"value\":{\"code\":-32603,\"data\":{\"message\":\"VM Exception while processing transaction: revert\",\"code\":-32000,\"data\":{\"0xccb22b990e1c56d2f45ad4ada4143c8ea721c924e875cd62601313d7402d3ea8\":{\"error\":\"revert\",\"program_counter\":46,\"return\":\"0x\"},\"stack\":\"RuntimeError: VM Exception while processing transaction: revert\\n    at Function.RuntimeError.fromResults (/tmp/.mount_ganachYMHaCq/resources/static/node/node_modules/ganache-core/lib/utils/runtimeerror.js:94:13)\\n    at BlockchainDouble.processBlock (/tmp/.mount_ganachYMHaCq/resources/static/node/node_modules/ganache-core/lib/blockchain_double.js:627:24)\\n    at runMicrotasks (<anonymous>)\\n    at processTicksAndRejections (internal/process/task_queues.js:93:5)\",\"name\":\"RuntimeError\"}}}}'" }

如您所見，合約是一個簡單的拋硬幣接觸，您可以推斷我是這方面的絕對初學者

我有同樣的錯誤，我現在通過在發送交易時提高氣體限制來解決它！

我建議你提高你的氣體限制，然後再試一次。

可能導致此問題的一件事

前端發送 1 個乙太幣

contractInstance.methods.betxc(x).send({value: web3.utils.toWei("1", "ether")})

和獲勝時的契約發送兩倍的金額

msg.sender.transfer(msg.value*2);

為了使轉賬成功，合約需要有大於 2 個乙太幣的餘額。

注意：block.timestamp不是隨機性的好來源。

引用自：https://ethereum.stackexchange.com/questions/92221