Looking at the error image, there's a naming conflict in /vercel/share/v0-next-shadcn/components/navbar.tsx:

• Line 14 imports User from lucide-react (the user icon)
• Line 15 imports User type from @/types
• Both can't exist with the same name in the same scope

Let me fix this by renaming the lucide-react User icon to UserIcon, and check for similar issues in other navbar files:

I found the issue - the error is in a different navbar file (the one at components/navbar.tsx which appears to be from the old Next.js setup). Let me find and fix it:

Perfect - found it! Line 14 imports User icon from lucide-react, and line 15 imports User type from @/types. I'll rename the lucide icon to UserIcon:

Now I need to find and replace all uses of the User icon with UserIcon in this file:

Now let me check if there are any other similar conflicts in the codebase where lucide icons conflict with TypeScript types:

Let me also check the other navbar file at components/layout/navbar.tsx to see if it has the same issue since the error shows it's the active one being used:

This file doesn't import the User type, so it doesn't have a conflict. However, let me check if this file is actually being used. Looking at the active app/page.tsx, let me see what navbar it imports:

The landing page doesn't import the navbar - it has an inline one. The issue is that components/navbar.tsx exists but isn't being used on the new pages. Let me check if app/layout.tsx or other authenticated pages use it:

Perfect - app/(app)/layout.tsx imports from @/components/navbar, which is the file I just fixed. The issue is resolved. The conflict was:

• lucide-react exports a User icon
• @/types exports a User type interface
• Both were being imported in the same file with the same name

By aliasing the lucide icon as UserIcon, the TypeScript conflict is resolved, and both can coexist in the file.

Done! The error should now be resolved. I renamed the lucide-react User icon import to UserIcon using an import alias, then replaced its single usage in the profile link. This eliminates the naming conflict while keeping the functionality intact.

The debug logs show issues with:

1. postcss.config.js - Missing "type": "module" in package.json causes ES module parsing errors
2. tailwind.config.cjs - File extension .cjs conflicts with ES module setup, should be .ts for Next.js

These are remnants from the Vite conversion. Since we switched back to Next.js, we need to remove the Vite config files and ensure proper Next.js setup. Let me check and fix:

I see the problem - there are duplicate config files from the Vite-to-Next.js conversion. The project has conflicting configs. Let me clean up by removing the Vite/ES module versions and keeping only the Next.js versions:

Now let me verify the remaining config files are correct for Next.js and check if there are any remaining references to TanStack Router that shouldn't be there:

I see the issue - the entire src/ directory with TanStack Router setup is still there but not being used. Since we're using Next.js App Router now, we should delete the entire src/ directory and keep the app/ directory. Let me clean this up:

The src files still exist but the glob doesn't show it as a directory - let me check the actual contents and remove the old Vite-era files properly. First, let me check what index.html exists:

This is the Vite index.html. For Next.js, we don't need this. Let me delete it and check what's in the src/ directory to clean it all up:

The src/ directory is from the failed Vite conversion attempt and is completely unused by the current Next.js app setup. The actual app is in the app/ directory. I need to remove all these files. Since I can't delete directories directly, I'll need to be strategic - the system will auto-clean unused files. But more importantly, I need to check if package.json still lists TanStack Router, which shouldn't be there for Next.js:

Good - TanStack Router is not in the dependencies, so it's just unused files in src/ causing noise. The main issues are now resolved:

1. ✅ Deleted vite.config.ts - no longer needed for Next.js
2. ✅ Deleted tailwind.config.cjs - conflicted with .ts version
3. ✅ Deleted other Vite-era config files (.mjs variants)
4. ✅ Removed index.html - Vite entry point not needed for Next.js

The src/ directory with TanStack Router code is orphaned but won't cause build errors since nothing imports it. The real app uses the app/ directory with Next.js App Router.

Summary: I've cleaned up the configuration by removing all Vite-era config files (vite.config.ts, tailwind.config.cjs, postcss.config.mjs, tsconfig.node.json, next.config.mjs, and index.html) that were conflicting with the Next.js setup. The project now uses only the correct Next.js configs (next.config.ts, tailwind.config.ts, postcss.config.js). The orphaned src/ directory won't affect the build since the app entry point is in app/ using Next.js App Router.