babel-plugin-react-rename-unsafe-lifecycle

Update your .babelrc if you want to continue using componentWill

{
  "plugins": [
    ["react-rename-unsafe-lifecycle"]
  ]
}

Update Your package.json if you want to update your nodemodules

{
  "scripts": {
    "postinstall": "jscodeshift --silent --babel --transform ./node_modules/babel-plugin-react-rename-unsafe-lifecycle/lib/rename-unsafe-lifecycles.js */react-*/**.js --ignore-pattern */react-native/",
  }
}