regeneratorRuntime is not defined about complete-intro-to-react-v5 HOT 3 CLOSED

There is a known bug in parcel that can cause this error, regardless of how your .babelrc is configured. Bumping all targets in the browserslist node in package.json to "last 1 X" fixes this bug for me without needing babel-polyfill or deviating .babelrc from the course notes.

from complete-intro-to-react-v5.

@eostrom try the solution in the following link. It worked for me.

jestjs/jest#7579 (comment)

Here is how my .babelrc file looks like

{
	"presets": [
		"@babel/preset-react", 
		["@babel/preset-env", { "targets": { "node": "current" } }]
	],
	"plugins": ["@babel/plugin-proposal-class-properties"]
}

from complete-intro-to-react-v5.

Yeah, the key there is preset-env. Regenerator allows you to do generators with ES5 code and the way that async/await is translated is by making it work with generators. So once you started targeting node: current it basically told Babel to stop translating from async/await to ES5-compatible Regenerator code.

from complete-intro-to-react-v5.