导入预制对象时候报这错

Error: Can not revert prefab, the file id of “zb1_toggle” in prefab asset is duplicated with “zb2_toggle”, please recreate the prefab again by click [节点 - 还原成普通节点] and [节点 - 关联节点到预制] in the menu.
at t (/Applications/CocosCreator.app/Contents/Resources/app.asar/editor/page/scene-utils/prefab-utils.js:1:5471)
at /Applications/CocosCreator.app/Contents/Resources/app.asar/editor/page/scene-utils/prefab-utils.js:1:6248
at visitNode (/Applications/CocosCreator.app/Contents/Resources/app.asar/editor/page/scene-utils/prefab-utils.js:1:197)
at visitNode (/Applications/CocosCreator.app/Contents/Resources/app.asar/editor/page/scene-utils/prefab-utils.js:1:246)
at visitNode (/Applications/CocosCreator.app/Contents/Resources/app.asar/editor/page/scene-utils/prefab-utils.js:1:246)
at Object.PrefabUtils._doRevertPrefab (/Applications/CocosCreator.app/Contents/Resources/app.asar/editor/page/scene-utils/prefab-utils.js:1:6009)
at /Applications/CocosCreator.app/Contents/Resources/app.asar/editor/page/scene-utils/prefab-utils.js:1:7221
at CCLoader. (/Applications/CocosCreator.app/Contents/Resources/engine/cocos2d/core/platform/CCAssetLibrary.js:110:17)
at /Applications/CocosCreator.app/Contents/Resources/engine/cocos2d/core/load-pipeline/CCLoader.js:253:38
at /Applications/CocosCreator.app/Contents/Resources/engine/cocos2d/core/platform/utils.js:67:21

为什么会出现这个。

就是做了个预制对象,然后导入到某个scene中然后就会报这个错。请问是什么原因会造成这个问题呢?

加入一点,是在点左上角同步的时候。同步预制对象的时候