Tried pushing a project to heroku - got the same error when using heroku-cli and when connecting to Github.
Error Log:
-----> Building dependencies
Installing node modules (package.json + package-lock)
npm ERR! Cannot read property 'match' of undefined
Package.json
{
"name": "myApp",
"version": "0.1.0",
"private": true,
"dependencies": {
"react": "^16.7.0",
"react-dom": "^16.7.0",
"react-router-dom": "^4.3.1",
"react-scripts": "2.1.3",
"react-social-icons": "^4.1.0",
"react-spring": "^7.2.10"
},
...
"eslintConfig": {
"extends": "react-app"
},
"engines": {
"node": "10.13.0"
},
...
"devDependencies": {
"react": "^16.7.0"
}
}
React wasn't initially in devDependencies - have that there as an attempt at fixing an earlier error.
Issue persists either way.
This issue is most likely related to your package-lock.json
. This file causes a lot of issues, but it's recommended that you check it into source.
With that said, one of two things should fix your issue:
package-lock.json
and node_modules
locally, then re-install all of your dependencies: npm i
. Try pushing to Heroku again after this is complete.package-lock.json
file locally, commit your change, and try pushing to Heroku again.Also, you should not have to list react
as a dev dependency. You can delete that from your package.json
.