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Error:dijit.tree.TreeStoreModel:root query returned 0 items

1、错误描写叙述

error loading root:

                                           Tree.js(第341行)


Error:dijit.tree.TreeStoreModel:root query returned 0 items,but must return exactly one.

                                           TreeStoreModel.js(第24行)

2、错误原因


3、解决的方法

Error:dijit.tree.TreeStoreModel:root query returned 0 items