Phiz-Desktop

below is the issue we get

setState() or markNeedsBuild() called during build.
This _InheritedProviderScope<SelectedPage?> widget cannot be marked as needing to build because
the framework is already in the process of building widgets. A widget can be marked as needing to be
built during the build phase only if one of its ancestors is currently building. This exception is
allowed because the framework builds parent widgets before children, which means a dirty descendant
will always be built. Otherwise, the framework might not visit this widget during this build phase.
The widget on which setState() or markNeedsBuild() was called was