usando CRA expulsado, se compila con éxito y luego se rompe mostrando el siguiente error. Comenzó a suceder cuando actualicé npm a 7 desde 6

 You can now view webrms in the browser. Local: http://localhost:3001 On Your Network: http://192.168.0.160:3001 Note that the development build is not optimized. To create a production build, use npm run build. /home/murtaza/umai/webrms/node_modules/watchpack/lib/chokidar.js:17 throw new Error( ^ Error: No version of chokidar is available. Tried chokidar@2 and chokidar@3. You could try to manually install any chokidar version. chokidar@3: Error: Cannot find module 'chokidar' Require stack: - /home/murtaza/umai/webrms/node_modules/watchpack/lib/chokidar.js - /home/murtaza/umai/webrms/node_modules/watchpack/lib/DirectoryWatcher.js - /home/murtaza/umai/webrms/node_modules/watchpack/lib/watcherManager.js - /home/murtaza/umai/webrms/node_modules/watchpack/lib/watchpack.js - /home/murtaza/umai/webrms/node_modules/webpack/lib/node/NodeWatchFileSystem.js - /home/murtaza/umai/webrms/node_modules/webpack/lib/node/NodeEnvironmentPlugin.js - /home/murtaza/umai/webrms/node_modules/webpack/lib/webpack.js - /home/murtaza/umai/webrms/scripts/start.js chokidar@2: Error: Cannot find module 'watchpack-chokidar2' Require stack: - /home/murtaza/umai/webrms/node_modules/watchpack/lib/chokidar.js - /home/murtaza/umai/webrms/node_modules/watchpack/lib/DirectoryWatcher.js - /home/murtaza/umai/webrms/node_modules/watchpack/lib/watcherManager.js - /home/murtaza/umai/webrms/node_modules/watchpack/lib/watchpack.js - /home/murtaza/umai/webrms/node_modules/webpack/lib/node/NodeWatchFileSystem.js - /home/murtaza/umai/webrms/node_modules/webpack/lib/node/NodeEnvironmentPlugin.js - /home/murtaza/umai/webrms/node_modules/webpack/lib/webpack.js - /home/murtaza/umai/webrms/scripts/start.js at Object.<anonymous> (/home/murtaza/umai/webrms/node_modules/watchpack/lib/chokidar.js:17:7) at Module._compile (internal/modules/cjs/loader.js:1063:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10) at Module.load (internal/modules/cjs/loader.js:928:32) at Function.Module._load (internal/modules/cjs/loader.js:769:14) at Module.require (internal/modules/cjs/loader.js:952:19) at require (internal/modules/cjs/helpers.js:88:18) at Object.<anonymous> (/home/murtaza/umai/webrms/node_modules/watchpack/lib/DirectoryWatcher.js:9:16) at Module._compile (internal/modules/cjs/loader.js:1063:30) at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)

¿Alguien tiene el mismo problema? En caso afirmativo, ¿cuál es la solución?