Add Utilities

Commonly used utilities for using RareUI

Install dependencies

npm i motion clsx tailwind-merge

Add util file

Create a lib/utils.ts file with the cn utility function:

import { ClassValue, clsx } from "clsx";
import { twMerge } from "tailwind-merge";
 
export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

Next.js 15 and React 19 Framer Motion Fix

If you're using Next.js 15 and React 19, you'll need to make the following changes in order to use framer motion (which is now motion), since framer motion is not compatible with React 19 yet.

Using framer-motion

{
  "dependencies": {
    "framer-motion": "^12.0.0-alpha.1",
    "next": "15.0.3",
    "react": "19.0.0-rc-66855b96-20241106",
    "react-dom": "19.0.0-rc-66855b96-20241106",
    "tailwind-merge": "^2.5.5"
  },
  "overrides": {
    "framer-motion": {
      "react": "19.0.0-rc-66855b96-20241106",
      "react-dom": "19.0.0-rc-66855b96-20241106"
    }
  }
}

If you're using motion instead of framer-motion, you can make the following changes:

{
  "dependencies": {
    "motion": "^12.0.0-alpha.1",
    "next": "15.0.3",
    "react": "19.0.0-rc-66855b96-20241106",
    "react-dom": "19.0.0-rc-66855b96-20241106",
    "tailwind-merge": "^2.5.5"
  },
  "overrides": {
    "motion": {
      "react": "19.0.0-rc-66855b96-20241106",
      "react-dom": "19.0.0-rc-66855b96-20241106"
    }
  }
}

Note: The overrides field ensures that motion/framer-motion uses the correct React version to avoid compatibility issues.

Previous
Next