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Thread: NestedList TreeStore setData throws "can not call method indexOf of null" error

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    Default NestedList TreeStore setData throws "can not call method indexOf of null" error

    I have a NestedList which I am populating dynamically. On first setData call of TreeStore, it works fine but subsequent calls to setData result into this error "can not call method indexOf of null".

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    Sencha - Sr Software Engineer mitchellsimoens's Avatar
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    Have you tried using the appendChild method on the root node?
    Mitchell Simoens @LikelyMitch
    Sencha Inc, Senior Software Engineer
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