问题可能是因为golang程序没有正确解析AWS凭证文件。解决方法可采用AWS SDK for Go中的CredentialsProvider接口，首先要加载凭证文件，然后获取具有必要属性的AWSCredentials结构体，最后从中提取AccountID。

示例代码如下：

package main

import (
    "fmt"
    "github.com/aws/aws-sdk-go/aws"
    "github.com/aws/aws-sdk-go/aws/session"
    "github.com/aws/aws-sdk-go/aws/credentials"
)

func main() {
    sessOpts := session.Options{
        Config: aws.Config{
            Credentials: credentials.NewSharedCredentials("", ""),
        },
    }
    
    sess, err := session.NewSessionWithOptions(sessOpts)
    if err != nil {
        panic(err)
    }
    
    creds, err := sess.Config.Credentials.Get()
    if err != nil {
        panic(err)
    }
    
    accountID := aws.StringValue(creds.AccountID)
    fmt.Println(accountID)
}