Try to access class SAssetView,got error LNK2019

im writing a plugin ,i need to access SAssetView to get current selected folders.
Here is my code:

TSharedPtr<SAssetView> AssetViewPtr = StaticCastSharedPtr<SAssetView>(FocusWidget);

compile is fine.but Iink fail:
error LNK2019: unresolved external symbol public: class TArray __cdecl SAssetView::GetSelectedFolders(void)const

anyone have exp on it please help,thank you

Did you add < include"SAssetView.h" > to your source file?

yeah,compile is fine
i searched a lot ,epic not allow the us to access private class