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Error: cannot call methods on draggable prior to initialization; attempted to call

cannot call methods on draggable prior to initialization; attempted to call  报这个问题的根本原因是因为你的引用文件有问题

,你的jquery 的js或者css样式引用重复导致它读取两次,初始化失败就会报这个错误,好好看看配置文件