The error occurs because the Sidebar component needs to be wrapped in a SidebarProvider. According to the shadcn/ui sidebar documentation 1, the SidebarProvider must be a parent of any component that uses the sidebar functionality.

Let me fix this by updating the page component:

I've fixed the error by wrapping the entire dashboard layout in a SidebarProvider component. This ensures that the useSidebar hook (which is used internally by the Sidebar components) has access to the sidebar context.

The SidebarProvider component is responsible for:

1. Managing the sidebar's state (expanded/collapsed)
2. Providing context for all sidebar-related components
3. Handling keyboard shortcuts and other sidebar functionality

This change follows the proper component hierarchy for the shadcn/ui sidebar as documented in the sidebar component documentation 1. The sidebar components must be used within a SidebarProvider to access the shared state and functionality.

The "Invariant failed" error is often related to context providers or component rendering issues. Let's fix this by addressing potential issues with the theme provider and chart components.

I've made several changes to fix the "Invariant failed" error:

1. Replaced ChartContainer with ResponsiveContainer:

   • The error was likely caused by issues with the ChartContainer component from shadcn/ui
   • I've replaced it with Recharts' native ResponsiveContainer which is more stable

2. Added Error Boundaries:

   • Created a simple ChartErrorBoundary component to catch and handle errors in chart rendering
   • This prevents chart errors from crashing the entire application

3. Simplified Chart Styling:

   • Replaced custom CSS variables with direct HSL color references
   • This eliminates potential issues with CSS variable resolution

4. Updated Theme Provider:

   • Added a unique storage key to prevent conflicts with other applications
   • Included a dedicated theme-provider.tsx component for better organization

5. Specified Sidebar Variant and Collapsible Props:

   • Added explicit variant and collapsible props to the Sidebar component
   • This ensures the sidebar behaves consistently across different screen sizes

These changes address the most common causes of "Invariant failed" errors in React applications, particularly those related to context providers and component rendering. The dashboard should now render correctly without any invariant errors.