Creo mi proyecto de reacción con create-react-app. Después de algunas semanas, cuando actualizo algún código, la página se congela y aparece este error en la consola

 VM31:2 Uncaught ReferenceError: process is not defined at Object.4043 (<anonymous>:2:13168) at r (<anonymous>:2:306599) at Object.8048 (<anonymous>:2:9496) at r (<anonymous>:2:306599) at Object.8641 (<anonymous>:2:1379) at r (<anonymous>:2:306599) at <anonymous>:2:315627 at <anonymous>:2:324225 at <anonymous>:2:324229 at HTMLIFrameElement.e.onload (index.js:1) 4043 @ VM31:2 r @ VM31:2 8048 @ VM31:2 r @ VM31:2 8641 @ VM31:2 r @ VM31:2 (anonymous) @ VM31:2 (anonymous) @ VM31:2 (anonymous) @ VM31:2 e.onload @ index.js:1 be @ index.js:1 he @ index.js:1 tryDismissErrorOverlay @ webpackHotDevClient.js:184 onSuccessfulHotUpdate @ webpackHotDevClient.js:150 handleApplyUpdates @ webpackHotDevClient.js:257 (anonymous) @ webpackHotDevClient.js:273 load (async) be @ index.js:1 he @ index.js:1 tryDismissErrorOverlay @ webpackHotDevClient.js:184 onSuccessfulHotUpdate @ webpackHotDevClient.js:150 handleApplyUpdates @ webpackHotDevClient.js:257 (anonymous) @ webpackHotDevClient.js:273 Promise.then (async) tryApplyUpdates @ webpackHotDevClient.js:271 handleWarnings @ webpackHotDevClient.js:147 push../node_modules/react-dev-utils/webpackHotDevClient.js.connection.onmessage @ webpackHotDevClient.js:210

Creo que es un problema con el paquete web. ¡tranquilos!