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Start your free trialRodrigo Novaes
9,629 PointsUncaught TypeError: _react.default.createContext is not a function
I'm getting this error and the app won't render:
Uncaught TypeError: _react.default.createContext is not a function
at Object.<anonymous> (bundle.js:31462)
at __webpack_require__ (bundle.js:556)
at fn (bundle.js:87)
at Object.<anonymous> (bundle.js:31248)
at __webpack_require__ (bundle.js:556)
at fn (bundle.js:87)
at Object.<anonymous> (bundle.js:31177)
at __webpack_require__ (bundle.js:556)
at fn (bundle.js:87)
at Object.<anonymous> (bundle.js:8681)
3 Answers
John Nguyen
Full Stack JavaScript Techdegree Graduate 30,501 PointsI had the same issue. Similar to with what David said, it (most likely) has to do with your react-redux and redux versions.
I solved the issue by
1) downloading the project files(for this video) and copying the package.json file from the 'final' version of this video.
Package.json
{
"name": "react-redux-course",
"version": "1.0.0",
"description": "React-Redux course for Treehouse",
"main": "src/index.js",
"scripts": {
"prestart": "npm run lint",
"start": "webpack-dev-server --progress --inline --hot",
"lint": "eslint ./src/**/*.{js, jsx} --fix",
"test": "echo \"Error: no test specified\" && exit 1"
},
"keywords": [
"react",
"redux",
"treehouse"
],
"author": "Beau Palmquist",
"license": "MIT",
"dependencies": {
"react": "^15.3.2",
"react-dom": "^15.3.2",
"react-redux": "^4.4.5",
"redux": "^3.6.0"
},
"devDependencies": {
"babel-core": "^6.13.2",
"babel-eslint": "^6.1.2",
"babel-loader": "^6.2.7",
"babel-preset-es2015": "^6.13.2",
"babel-preset-react": "^6.11.1",
"babel-preset-stage-0": "^6.5.0",
"eslint": "^3.3.1",
"eslint-plugin-react": "^6.1.2",
"react-hot-loader": "^1.3.0",
"webpack": "^1.13.2",
"webpack-dev-server": "^1.16.2"
}
}
2) running npm i
And that should fix the issue.
If you are still running into issues, you'd want to check your code compared to the 'final' version of this video's code. I had to do this and I used diffchecker.com to compare my code to the 'final' version.
Abigail Rogers
6,271 PointsI receive the same TypeError, and neither of the proposed solutions by David or John corrected the issue.
David Hamilton
21,522 PointsThe issue is with using a newer version of react-redux with an old version of react.
You can get it to work by going into the package.json and changing the react-redux version to "^5.0.0".