not v6.15.0 but v6.16.0 breaks in React v19?

[thejasonxie]

Before creating a new issue, please confirm:

• I have searched for duplicate or closed issues and discussions.
• I have tried disabling all browser extensions or using a different browser
• I have tried deleting the node_modules folder and reinstalling my dependencies
• I have read the guide for submitting bug reports.

On which framework/platform are you having an issue?

React

Which UI component?

Authenticator

How is your app built?

Vite

What browsers are you seeing the problem on?

Chrome

Which region are you seeing the problem in?

us-east-1

Please describe your bug.

What's the expected behaviour?

that it works?

Help us reproduce the bug!

install react 19

Code Snippet

// Put your code below this line.

Console log output

No response

Additional information and screenshots

No response

[osama-rizk]

Hi @thejasonxie ,

Thank you for creating this issue. We will investigate and get back to you once we have more information.

[osama-rizk]

Hi @thejasonxie,

I was not able to re-produce the issue here is my package.json

{
  "name": "package-name",
  "private": true,
  "version": "0.0.0",
  "type": "module",
  "scripts": {
    "dev": "vite",
    "build": "tsc && vite build",
    "lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
    "preview": "vite preview"
  },
  "dependencies": {
    "@aws-amplify/ui-react": "~6.13.2",
    "aws-amplify": "^6.15.0",
    "react": "^19.2.3",
    "react-dom": "^19.2.3"
  },
  "engines": {
    "node": ">= 20.20.0",
    "npm": ">= 10.8.0"
  },
  "devDependencies": {
    "@aws-amplify/backend": "~1.19.0",
    "@aws-amplify/backend-cli": "~1.8.1",
    "@eslint/compat": "~2.0.1",
    "@eslint/eslintrc": "~3.3.3",
    "@eslint/js": "~9.39.2",
    "@types/react": "^19.2.9",
    "@types/react-dom": "^19.2.3",
    "@typescript-eslint/eslint-plugin": "~8.53.0",
    "@typescript-eslint/parser": "~8.53.0",
    "@vitejs/plugin-react": "~5.1.2",
    "esbuild": "~0.27.2",
    "eslint": "~9.39.2",
    "eslint-plugin-react-hooks": "~7.0.1",
    "eslint-plugin-react-refresh": "~0.4.26",
    "globals": "~17.0.0",
    "typescript": "~5.9.3",
    "vite": "~7.3.1"
  }
}

[bobbor]

hey both of you @thejasonxie @osama-rizk

according to your AI feedback aws-amplify@latest resolves to version 6.16.0.
I think that is relevant for reproduction

[osama-rizk]

@bobbor Issue is not reproducible with amplify latest and react 19. Here is the package.json

{
  "name": "package-name",
  "private": true,
  "version": "0.0.0",
  "type": "module",
  "scripts": {
    "dev": "vite",
    "build": "tsc && vite build",
    "lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
    "preview": "vite preview"
  },
  "dependencies": {
    "@aws-amplify/ui-react": "~6.13.2",
    "aws-amplify": "~6.16.0",
    "react": "~19.2.4",
    "react-dom": "~19.2.4"
  },
  "engines": {
    "node": ">= 20.20.0",
    "npm": ">= 10.8.0"
  },
  "devDependencies": {
    "@aws-amplify/backend": "~1.19.0",
    "@aws-amplify/backend-cli": "~1.8.1",
    "@eslint/compat": "~2.0.1",
    "@eslint/eslintrc": "~3.3.3",
    "@eslint/js": "~9.39.2",
    "@types/react": "~19.2.10",
    "@types/react-dom": "~19.2.3",
    "@typescript-eslint/eslint-plugin": "~8.53.0",
    "@typescript-eslint/parser": "~8.53.0",
    "@vitejs/plugin-react": "~5.1.2",
    "esbuild": "~0.27.2",
    "eslint": "~9.39.2",
    "eslint-plugin-react-hooks": "~7.0.1",
    "eslint-plugin-react-refresh": "~0.4.26",
    "globals": "~17.0.0",
    "typescript": "~5.9.3",
    "vite": "~7.3.1"
  }
}

[thejasonxie]

Mhm, if its not reproducible then we can probably close this. Sorry for wasting your time. My ai probably had some issues doing the upgrade to v19, i recall there being a duplicate react issue.