更新了 Eclipse 4.2 导入原有项目 报错?Source folder ''{0}'' in project ''{2}'' cannot output to distinct source folder ''{1}'' ?意思是 输出文件夹不能是源文件夹。解决方案是 修改设置 Window-Preferences-Java-Complier-Building-Build path problems-Output location overlaps sourcr?location?由Error改为Waning或Ignore