项目总是有红叉叉，打开又没错，Build path contains duplicate entry: '...' for project 'X
2013-06-16 17:24
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打开：项目属性 -> javaBuildPath ->Libraries
提示如下：
Build path contains duplicate entry: 'WebRoot/WEB-INF/lib/jstl.jar' for project 'XXX'
原来 jstl.jar 包有两个引入，应该是项目更新时，冲突了；
然后找到项目的 .clsspath文件 打开，将多余的jstl.jar引入删掉；
提示如下：
Build path contains duplicate entry: 'WebRoot/WEB-INF/lib/jstl.jar' for project 'XXX'
原来 jstl.jar 包有两个引入，应该是项目更新时，冲突了；
然后找到项目的 .clsspath文件 打开，将多余的jstl.jar引入删掉；
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