Go-Ethereum iOS 无法解组结果

Question

所以我在 iOS 玩 go-ethereum，我在尝试与部署到 Rinkeby testnet 的合约进行交互时遇到了很多麻烦，我对整个过程都很陌生区块链技术，所以任何帮助表示赞赏。

我想做的就是访问已部署的合同并获取字符串的值，但我遇到的问题是当我尝试调用绑定合同时出现此错误：

Thread 1: Fatal error: 'try!' expression unexpectedly raised an error: Error Domain=go Code=1 "abi: cannot unmarshal string in to []interface {}" UserInfo={NSLocalizedDescription=abi: cannot unmarshal string in to []interface {}}

这是我用来拨打电话的代码。

    // Declare the error variables
    var clientError: NSErrorPointer;
    var addressError: NSErrorPointer;
    var contractError: NSErrorPointer;

    // Get the bindContract from Rinkeby test network.
    let client = GethNewEthereumClient("https://rinkeby.infura.io/v3/398ed56d211646faaf010ca183de11f2", clientError);
    let contractAddress = GethNewAddressFromHex("0x7259667715d671Ee370d7788647f95Fe7C3B532d", addressError);

    guard let contractABI = ReadJsonResourceAsString(fileName: "InboxContractInterface", fileType: "json") else {
        print("[ViewController] failed to read the abi json as string.")
        return;
    }

    let boundContract = GethBindContract(contractAddress, contractABI, client, contractError);

    // Prepare the callOpts
    let callOpts = GethNewCallOpts();
    callOpts?.setGasLimit(300000);
    callOpts?.setContext(GethNewContext());


    // Prepare the results & params interfaces
    let results = GethNewInterfaces(1);
    let params = GethNewInterfaces(0);


    let stringResult = GethNewInterface();
    stringResult?.setDefaultString();
    try! results?.set(0, object: stringResult);

    // Make the call
    let methodName = "message";
    try! boundContract?.call(callOpts, out_: results, method: methodName, args: params);


    // Show results.
    print("[ViewController] message call result: " + (stringResult?.getString())!);

这是我的合约代码：

pragma solidity ^0.4.17;

contract Inbox {

    string public message;

    function Inbox (string initialMessage) public {
        message = initialMessage;
    }

    function setMessage (string newMessage) public {
        message = newMessage;

    }

}

Answer 1

对于在进一步挖掘后可能会发现相同问题的任何人，我在 android 中发现了这个问题：https://github.com/ethereum/go-ethereum/issues/14832

幸运的是这已经被修复了，所以完全是我没有使用最新版本的错。我使用的是 Geth v1.5.9，所以在更新到 v1.8.2 后终于可以使用了，但不确定中间的哪个版本得到了修复。

Go-Ethereum iOS 无法解组结果

Go-Ethereum iOS cannot unmarshal results

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