调用ListPolicies，Panic

[chuyali]

package main

import (
    "fmt"

    "github.com/aliyun/alibaba-cloud-sdk-go/services/resourcemanager"
)

func main() {
    //构建阿里云客户端时需要设置AccessKey ID和AccessKey Secret。
    client, err := resourcemanager.NewClientWithAccessKey("cn-zhangjiakou.log.aliyuncs.com", "***", "***")

    //构建请求对象。
    request := resourcemanager.CreateListPoliciesRequest()
    //发起请求，并得到响应。
    response, err := client.ListPolicies(request)
    if err != nil {
        fmt.Print(err.Error())
    }
    fmt.Printf("response is %#v\n", response)
}

发生Panic,请问是哪有问题？

panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x58 pc=0x131df10]

goroutine 1 [running]: github.com/aliyun/alibaba-cloud-sdk-go/sdk.(Client).buildRequestWithSigner(0xc000194000, 0x145a9e0, 0xc000146280, 0x0, 0x0, 0x0, 0x0, 0x145a2c0) /Users/zhuyun/go/pkg/mod/github.com/aliyun/alibaba-cloud-sdk-go@v1.61.1783/sdk/client.go:418 +0x530 github.com/aliyun/alibaba-cloud-sdk-go/sdk.(Client).DoActionWithSigner(0xc000194000, 0x145a9e0, 0xc000146280, 0x1457038, 0xc0001462d0, 0x0, 0x0, 0x0, 0x0) /Users/zhuyun/go/pkg/mod/github.com/aliyun/alibaba-cloud-sdk-go@v1.61.1783/sdk/client.go:555 +0x169 github.com/aliyun/alibaba-cloud-sdk-go/sdk.(Client).DoAction(0xc000194000, 0x145a9e0, 0xc000146280, 0x1457038, 0xc0001462d0, 0xc00018a420, 0xc00012c270) /Users/zhuyun/go/pkg/mod/github.com/aliyun/alibaba-cloud-sdk-go@v1.61.1783/sdk/client.go:346 +0xa3c github.com/aliyun/alibaba-cloud-sdk-go/services/resourcemanager.(Client).ListPolicies(0xc000194000, 0xc000146280, 0x13d1ae1, 0x18, 0x13d4a90) /Users/zhuyun/go/pkg/mod/github.com/aliyun/alibaba-cloud-sdk-go@v1.61.1783/services/resourcemanager/list_policies.go:26 +0x98 main.main() /Users/zhuyun/go/src/gitlab.jiagouyun.com/cloudcare-tools/sls_ak_sk.go:16 +0x9c exit status 2

[JacksonTian]

https://api.aliyun.com/api/ResourceManager/2020-03-31/ListPolicies?sdkStyle=old&tab=DEMO&lang=GO 请参考我们的在线示例。