core-js npm package could not be found in node_modules

[sukanyajoshi123]

meteor-client.js:5093 Uncaught Error: The core-js npm package could not be found in your node_modules directory. Please run the following command to install it:

meteor npm install --save core-js

Can anybody have solution for this? It's an urgent requirement.

[theosp]

Please note, core-js v3.x is not compatible anymore with meteor here: https://github.com/meteor/meteor/blob/3051150f2f5ae953f391802e73682fba613b3d46/packages/ecmascript-runtime-client/modern.js

You need to install v2.6.5.

I updated my package.json to:

"core-js": "~2.6.5"

All works after that.