关于#怎么回事#的问题，如何解决？(开发工具-eclipse)

请帮忙看看这是怎么回事
Could not publish to the server.
I/O error on GET request for "null/v2/info":null; nested exception is org.apache.http.client.ClientProtocolException

有“null/v2/info”的controller类中mapping的路径是否正确