The parcel running terminal reports an error Uncaught ReferenceError: parcelRequire is not defined solution

we pass the instruction

npm install parcel-bundler

There will be an error when the installed parcel runs,

just change the version

Open the project terminal,
let's execute first

npm uninstall parcel-bundler

Give him the wrong version
and execute

npm install parcel

Install the correct version

Then run the project

and access the address in the browser, everything is normal