[Java报错]常见报错汇总

1.1 @Override 致错：The method execute() of type UploadAction must override or implement a supertype method

解决办法：

• 因为你的Compiler 是jdk1.5，只要把它改为 1.6。方法：window ->preferences… -> java -> Compiler：Compiler compliance level : 6.0
• 把项目的JRE变成6.0：项目右键->build path->configure build path->java Compiler(左边那排中) ->在右边的Compiler compliance level 修改版本为6.0

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1.2 报错：Description Resource Path Location TypeJava compiler level does not match the version of the installed Java project facet. shiro_learn Unknown Faceted Project Problem (Java Version Mismatch)

• 解决办法
  项目上右键Properties–> 搜索Project Facets –>java版本调到与jdk和compiler相同的版本

  

• 参考文档
  参考文档1：Java compiler level does not match解决方法

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