Measured entry
efferd-not-found-2
background-effectgradient-glowmotion on file
A full-screen not-found route with centered recovery actions and continuously drifting gradient orbs. It ships as a shadcn registry block, built from Tailwind utility classes, Motion animation, Lucide icons, and the shadcn Button and Empty primitives.



Measured
Every value below was written by the harness on the run that produced the frames above. None of it is derived from the prose.
| Build | OK |
|---|---|
| Mount | OK |
| Console errors | 0 |
| Uncaught page errors | 0 |
| Horizontal overflow | clean at 375, 768, 1440 |
| Axe critical | 0 |
| Axe serious | 0 |
| Axe moderate | 0 |
| Axe minor | 0 |
| Gzip marginal | 73.6 KB (139.0 KB build, 65.4 KB baseline) |
| Bare mode | FAIL |
| Provider required | NO |
| Demo used | written from the component source API |
What the harness recorded
BARE BUILD
✗ Build failed in 1m 28s error during build: [vite:load-fallback] Could not load <sandbox>/src/lib/utils (imported by src/components/ui/empty.tsx): ENOENT: no such file or directory, open '<sandbox>/src/lib/utils'
Verdict
A credible drop-in for an existing shadcn app: it builds, mounts cleanly, and adapts across the tested layouts. It needs a shadcn-style setup, so plain React projects should expect integration work. Replace the placeholder links and add reduced-motion handling before release.
Use it if
- You want a dedicated not-found screen with clear home and discovery actions.
- Your app already uses shadcn primitives and can absorb Motion for ambient animation.
- A full-viewport gradient treatment fits the product's visual language.
Skip it if
- You need a lightweight static error state without an animation dependency.
- Your design system does not use Tailwind utilities or shadcn component conventions.
- You require motion to stop automatically for reduced-motion preferences without modifying the source.
- You need production-ready navigation targets, since both supplied links are placeholders.
Install
| Declared dependencies | motion, radix-ui |
|---|---|
| Missing on install | none |
| Bare install | fails once the shadcn-style helpers are removed, so it needs that setup |
| Provider | no provider required in the harness |
In a non-shadcn project, add Tailwind with the expected theme variables and path alias, install Motion and Lucide React, then supply compatible Button and Empty primitives. The Button must support child composition and an outline variant, and the shared utility helper used by the primitives must exist.
Source and credit
This page is a review, not a copy. The component source lives with its author and this site does not republish it. Read the license before you use anything.
Author repository
github.com/shabanhr/efferd-uiAlternatives
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