如何解决智能合约的错误？

Question

我第一次尝试通过 NEAR 协议调用智能合约。 请告诉我如何解决以下错误。

1. 我已经创建了 Testnet NEAR 帐户。
2. 我使用此示例“https://github.com/near-examples/rust-counter/blob/master/contract/src/lib.rs”编译了“计数器”合约。
3. 我已经使用“near cli”将该合约部署到了测试网，并且已经成功。
4. 我调用near cli的“veiw函数”，返回错误。

% near view Counter get_num '{}'
View call: Counter.get_num({})
An error occured
Error: [-32000] Server error: Account ID Counter is invalid
    at /Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/node_modules/near-api-js/lib/providers/json-rpc-provider.js:322:31
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
    at async Object.exponentialBackoff [as default] (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/node_modules/near-api-js/lib/utils/exponential-backoff.js:7:24)
    at async JsonRpcProvider.sendJsonRpc (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/node_modules/near-api-js/lib/providers/json-rpc-provider.js:297:24)
    at async JsonRpcProvider.query (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/node_modules/near-api-js/lib/providers/json-rpc-provider.js:109:22)
    at async Account.viewFunction (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/node_modules/near-api-js/lib/account.js:356:24)
    at async exports.callViewFunction (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/index.js:75:48)
    at async Object.handler (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/utils/exit-on-error.js:52:9)
TypedError: [-32000] Server error: Account ID Counter is invalid
    at /Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/node_modules/near-api-js/lib/providers/json-rpc-provider.js:322:31
    at processTicksAndRejections (internal/process/task_queues.js:93:5)
    at async Object.exponentialBackoff [as default] (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/node_modules/near-api-js/lib/utils/exponential-backoff.js:7:24)
    at async JsonRpcProvider.sendJsonRpc (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/node_modules/near-api-js/lib/providers/json-rpc-provider.js:297:24)
    at async JsonRpcProvider.query (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/node_modules/near-api-js/lib/providers/json-rpc-provider.js:109:22)
    at async Account.viewFunction (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/node_modules/near-api-js/lib/account.js:356:24)
    at async exports.callViewFunction (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/index.js:75:48)
    at async Object.handler (/Users/shin.takahashi/.nodebrew/node/v14.14.0/lib/node_modules/near-cli/utils/exit-on-error.js:52:9) {
  type: 'UntypedError',
  context: undefined
}

Answer 1

Counter 不是有效的帐户 ID。 Uppercase letters in accounts-id are not allowed)。您需要传递正确的account-id。

我希望您的帐户 ID 采用 takahashi.testnet 或 dev-1623565709996-68004511819798 的形式（如果合约是使用 near dev-deploy 命令部署的）。

这是您可以使用dev-deploy 部署到测试网并使用near-cli 调用视图功能的方法：

❯ near --version
2.0.2

❯ near dev-deploy out/main.wasm
Starting deployment. Account id: dev-1623565709996-68004511819798, node: https://rpc.testnet.near.org, helper: https://helper.testnet.near.org, file: out/main.wasm
Transaction Id 5eTde2dUw5QTA8hbpWvAw4ABary64Tsnj9FzBCPS9Ne
Done deploying to dev-1623565709996-68004511819798

❯ near view dev-1623565709996-68004511819798 get_num '{}'
View call: dev-1623565709996-68004511819798.get_num({})
0

如果您使用的是主网网络（而不是测试网），您需要通过设置环境变量让 near-cli 知道这一点：

❯ export NEAR_ENV=mainnet