following assertion was thrown during performLayout():

[ehsanagha]

I/flutter (15128): constraints: SliverConstraints(AxisDirection.down, GrowthDirection.forward, ScrollDirection.idle,
I/flutter (15128): scrollOffset: 0.0, remainingPaintExtent: 603.4, crossAxisExtent: 411.4, crossAxisDirection:
I/flutter (15128): AxisDirection.right, viewportMainAxisExtent: 603.4, remainingCacheExtent: 853.4 cacheOrigin: 0.0 )
I/flutter (15128): geometry: null
I/flutter (15128): currently live children: 0,1,2,3
I/flutter (15128): This RenderObject had the following descendants (showing up to depth 5):
I/flutter (15128): RenderIndexedSemantics#e7755 relayoutBoundary=up3 NEEDS-PAINT
I/flutter (15128): RenderRepaintBoundary#c70e7 relayoutBoundary=up4 NEEDS-PAINT
I/flutter (15128): RenderTransform#34c8e relayoutBoundary=up5 NEEDS-PAINT
I/flutter (15128): RenderSemanticsGestureHandler#0f948 relayoutBoundary=up6 NEEDS-PAINT
I/flutter (15128): RenderPointerListener#14581 relayoutBoundary=up7 NEEDS-PAINT
I/flutter (15128): RenderIndexedSemantics#80231 relayoutBoundary=up3 NEEDS-PAINT
I/flutter (15128): RenderRepaintBoundary#d6bc3 relayoutBoundary=up4 NEEDS-PAINT
I/flutter (15128): RenderTransform#aec43 relayoutBoundary=up5 NEEDS-PAINT
I/flutter (15128): RenderSemanticsGestureHandler#d0703 relayoutBoundary=up6 NEEDS-PAINT
I/flutter (15128): RenderPointerListener#9913e relayoutBoundary=up7 NEEDS-PAINT
I/flutter (15128): RenderIndexedSemantics#d1292 relayoutBoundary=up3 NEEDS-PAINT
I/flutter (15128): RenderRepaintBoundary#090e4 relayoutBoundary=up4 NEEDS-PAINT
I/flutter (15128): RenderTransform#7300d relayoutBoundary=up5 NEEDS-PAINT
I/flutter (15128): RenderSemanticsGestureHandler#b02a2 relayoutBoundary=up6 NEEDS-PAINT
I/flutter (15128): RenderPointerListener#29f3d relayoutBoundary=up7 NEEDS-PAINT
I/flutter (15128): RenderIndexedSemantics#45a97 relayoutBoundary=up3 NEEDS-PAINT
I/flutter (15128): RenderRepaintBoundary#347c5 relayoutBoundary=up4 NEEDS-PAINT
I/flutter (15128): RenderTransform#ca4ef relayoutBoundary=up5 NEEDS-PAINT
I/flutter (15128): RenderSemanticsGestureHandler#97ff2 relayoutBoundary=up6 NEEDS-PAINT
I/flutter (15128): RenderPointerListener#d428e relayoutBoundary=up7 NEEDS-PAINT
I/flutter (15128): ════════════════════════════════════════════════════════════════════════════════════════════════════
I/flutter (15128): Another exception was thrown: NoSuchMethodError: The getter 'scrollOffsetCorrection' was called on null.
I/flutter (15128): Another exception was thrown: NoSuchMethodError: The method 'debugAssertIsValid' was called on null.
I/flutter (15128): Another exception was thrown: NoSuchMethodError: The getter 'visible' was called on null.
I/flutter (15128): Another exception was thrown: 'package:flutter_staggered_grid_view/src/rendering/sliver_variable_size_box_adaptor.dart': Failed assertion: line 365 pos 12: 'child != null': is not true.
I/flutter (15128): Another exception was thrown: NoSuchMethodError: The getter 'scrollOffsetCorrection' was called on null.
I/flutter (15128): Another exception was thrown: NoSuchMethodError: The method 'debugAssertIsValid' was called on null.
I/flutter (15128): Another exception was thrown: NoSuchMethodError: The getter 'visible' was called on null.