无法使用hyperledger fabric中的余额转移用例为新组织中的用户生成令牌

package main

import (
    "fmt"
    "github.com/hyperledger/fabric/core/chaincode/shim"
    "github.com/hyperledger/fabric/protos/peer"
)

type SimpleChaincode struct {
}

func (t *SimpleChaincode) Init(stub shim.ChaincodeStubInterface) peer.Response {
    return shim.Success(nil)
}

func (t *SimpleChaincode) Invoke(stub shim.ChaincodeStubInterface) peer.Response {
    function, args := stub.GetFunctionAndParameters()
    if function == "transfer" {
        return t.transfer(stub, args)
    }
    return shim.Error("Invalid function name")
}

func (t *SimpleChaincode) transfer(stub shim.ChaincodeStubInterface, args []string) peer.Response {
    if len(args) != 3 {
        return shim.Error("Incorrect number of arguments. Expecting 3")
    }
    from := args[0]
    to := args[1]
    amount := args[2]

    // 这里应该添加资产转移的逻辑
    // ...

    return shim.Success(nil)
}

func main() {
    err := shim.Start(new(SimpleChaincode))
    if err != nil {
        fmt.Printf("Error starting Simple chaincode: %s", err)
    }
}