Geth私有网络return执行简单合约时报错"invalid opcode: SELFBALANCE"

Question

我设置了一个简单的 Geth (v1.10.2-stable-97d11b01) 专用网络（genesis.json 配置如下）。我编译并部署了这个简单的测试合约（solidity版本：0.8.4+commit.c7e474f2.Emscripten.clang）：

// SPDX-License-Identifier: UNLICENSED;
pragma solidity >=0.8;

contract CoinA {
    
    bytes32 public coinName = "FAKE";

    mapping (address => uint) public balances;

    function transfer(address receiver, uint amount) public {
        require(balances[msg.sender] >= amount, "Not enough amount");
        
        balances[msg.sender] -= amount;
        balances[receiver] += amount;
    }

    function set(uint amount) public {
        require(amount >= 0);
        balances[msg.sender] = amount;
    }

    function get() view public returns (uint) {
        return balances[msg.sender];
    }

}

但是，在调用 set 方法时，我收到了这个错误：

UnhandledPromiseRejectionWarning: Error: Returned error: invalid opcode: SELFBALANCE

请提供有关如何解决此问题的建议。是因为服务器没有支持该操作码的最新功能吗？无论如何，我可以在不使用该操作码的情况下编译代码吗？

如果相关的话，我在 Node 上使用 Web3JS 调用了它：

    async function setCoin() {
        const contract = new w3.eth.Contract(abi, coinAddr);
        const query = contract.methods.set(1000);

        const tx: TransactionConfig = {
            data: query.encodeABI(),
            from: accPublicKey,
        };
        const gas = await w3.eth.estimateGas(tx);
        console.log("Estimate Gas: " + gas);
        tx.gas = gas;

        const signedTx = await w3.eth.accounts.signTransaction(tx, accPrivateKey);
        const result = await w3.eth.sendSignedTransaction(signedTx.rawTransaction);

        console.log("Done. Gas used: " + result.gasUsed);
    }

genesis.json 配置：

{
  "config": {
    "chainId": 5777,
    "homesteadBlock": 0,
    "eip150Block": 0,
    "eip155Block": 0,
    "eip158Block": 0,
    "byzantiumBlock": 0,
    "constantinopleBlock": 0,
    "petersburgBlock": 0,
    "clique": {
      "period": 15,
      "epoch": 30000
    }
  },
  "difficulty": "1",
  "gasLimit": "10000000",
  "extradata": "0x00000000000000000000000000000000000000000000000000000000000000001ac7d6c5ecdd24067221a44ee839ba0b847058a30000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
  "alloc": {
    "1ac7d6c5ecdd24067221a44ee839ba0b847058a3": { "balance": "300000000000000000000000" },
    "485012dCc48219dbE955C39e1cee4b71F041d178": { "balance": "300000000000000000000000" },
    "ea673022022Ea39a635C7336c6deA8BFa97778D9": { "balance": "300000000000000000000000" }
  }
}

Answer 1

selfbalance opcode was implemented in the Istanbul chain fork (source).

您需要在 genesis.json

中允许分叉

{
  "config": {
    "istanbulBlock": 0,

Geth私有网络return执行简单合约时报错"invalid opcode: SELFBALANCE"

Geth private network return error "invalid opcode: SELFBALANCE" when executing a simple contract

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