这个阿里云 OpenAPI问题怎么解决？

这个阿里云 OpenAPI问题怎么解决？请求路径 http://vpc.aliyuncs.com/
请求体{"body":{"SignatureVersion":"1.0","Action":"CreateVpc","Format":"JSON","SignatureNonce":"0.9732621737077863","Version":"2016-04-28","AccessKeyId":"*","Signature":"o2GEaLA0Czvm9vEc6F//LdKWtyU=","CidrBlock":"192.168.0.0/16","SignatureMethod":"HMAC-SHA1","VpcName":"testvpc0908","RegionId":"cn-shanghai-finance-1","Timestamp":"2023-09-08T06:51:27Z"},"headers":{"Content-Type":["application/json","application/x-www-form-urlencoded"]}}
出错信息：{"message":"I/O error on POST request for \"http://vpc.aliyuncs.com/\": 状态码:400,异常信息:<?xml version='1.0' encoding='UTF-8'?>2D46BD44-FA62-5038-AA02-87216C2146B1vpc.aliyuncs.comInvalidVersionSpecified parameter Version is not valid.![CDATA[https://api.aliyun.com/troubleshoot?q=InvalidVersion&product=Vpc]]; nested exception is java.io.IOException: 状态码:400,异常信息:<?xml version='1.0' encoding='UTF-8'?>2D46BD44-FA62-5038-AA02-87216C2146B1vpc.aliyuncs.comInvalidVersionSpecified parameter Version is not valid.![CDATA[https://api.aliyun.com/troubleshoot?q=InvalidVersion&product=Vpc]]","responseCode":400}