调用SDK中com.aliyuncs.DefaultAcsClient.getAcsResponse()接口报错
报如下这个错误,请问是什么原因java.lang.NullPointerException: null at java.lang.String.(String.java:566)
at com.aliyuncs.DefaultAcsClient.getResponseContent(DefaultAcsClient.java:257)
at com.aliyuncs.DefaultAcsClient.readResponse(DefaultAcsClient.java:240)
at com.aliyuncs.DefaultAcsClient.parseAcsResponse(DefaultAcsClient.java:182)
at com.aliyuncs.DefaultAcsClient.getAcsResponse(DefaultAcsClient.java:106)
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