Archive for required library: '.jar' in project '' cannot be read or is not a valid ZIP file

开发工具:eclipse jdk版本:1.7 问题描述:eclipse开发工具导入项目后,报错:Archive for required library: 'E:/repo/avalon-framework/avalon-framework/4.1.3/avalon-framework-4.1.3.jar' in project 'xxx' cannot be read or is not a v

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