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                                            amirreza

Error: Method 'addPostFrameCallback' cannot be called on 'WidgetsBinding?' because it is potentially null.

go to file : 'flutter_path'\flutter\.pub-cache\hosted\pub.dartlang.org\infinite_scroll_pagination-3.2.0\lib\src\ui\paged_sliver_builder.dart line 254 change WidgetsBinding.instance.addPostFrameCallback... to WidgetsBinding.instance?.addPostFrameCallback...