Referenced file contains errors (http://www.springframework.org/...解決

 今天打開老項目出現以下錯誤：

Referenced file contains errors (http://www.springframework.org/schema/context/spring-context-4.2.xsd). For more information, right click on the message in the Problems View and select "Show Details..." 

解決：

而後右鍵項目，選擇Validate，便可解決