Error after update: Cannot resolve module 'react/lib/ReactMount' : <p>So I was trying to put my react-webpack app on Heroku when I started getting the error that ReactMount was not at React/lib/ReactMount. Then I tried a lot of different stuff and ended up trying to create a new project with the same react-webpack generater. And now I get the same mistake even when running on localhost meaning that it must be due to an update somewhere, right?</p>

<p>Does anyone know anything about this?</p>

<p>I have the following dependencies:</p>

<pre><code> "devDependencies": {
"babel-core": "^6.0.0",
"babel-eslint": "^6.0.0",
"babel-loader": "^6.0.0",
"babel-polyfill": "^6.3.14",
"babel-preset-es2015": "^6.0.15",
"babel-preset-react": "^6.0.15",
"babel-preset-stage-0": "^6.5.0",
"bower-webpack-plugin": "^0.1.9",
"chai": "^3.2.0",
"copyfiles": "^1.0.0",
"css-loader": "^0.23.0",
"eslint": "^3.0.0",
"eslint-loader": "^1.0.0",
"eslint-plugin-react": "^6.0.0",
"file-loader": "^0.9.0",
"glob": "^7.0.0",
"isparta-instrumenter-loader": "^1.0.0",
"karma": "^1.0.0",
"karma-chai": "^0.1.0",
"karma-coverage": "^1.0.0",
"karma-mocha": "^1.0.0",
"karma-mocha-reporter": "^2.0.0",
"karma-phantomjs-launcher": "^1.0.0",
"karma-sourcemap-loader": "^0.3.5",
"karma-webpack": "^1.7.0",
"minimist": "^1.2.0",
"mocha": "^3.0.0",
"null-loader": "^0.1.1",
"open": "0.0.5",
"phantomjs-prebuilt": "^2.0.0",
"react-addons-test-utils": "^15.0.0",
"react-hot-loader": "^1.2.9",
"rimraf": "^2.4.3",
"style-loader": "^0.13.0",
"url-loader": "^0.5.6",
"webpack": "^1.12.0",
"webpack-dev-server": "^1.12.0"


"dependencies": {
"core-js": "^2.0.0",
"firebase": "^3.5.2",
"input-moment": "^0.3.0",
"moment": "^2.15.2",
"normalize.css": "^4.0.0",
"react": "^15.0.0",
"react-bootstrap-datetimepicker": "0.0.22",
"react-datetimepicker-bootstrap": "^1.1.2",
"react-dom": "^15.0.0",
"webpack": "^1.13.3"
</code></pre>
