報錯：Multiple annotations found at this line: - String cannot be resolved to a type解決方法

Multiple annotations found at this line:

• String cannot be resolved to a type
• The method getContextPath() from the type HttpServletRequest refers to the missing type String

解決辦法:

首先 右擊該項目 - Build Path - Configure Build Path ， 在 Libraries 選項下，會發現有個出錯的jre Libraries，將其Remove掉。

然後 右擊該項目 - Build Path - Add Library， 選擇JRE System Library，選擇Workspace default JRE(此前JDK已成功安裝並配置好)， 然後 Finish 。