Can't react-native start

module.js:540 throw err; ^

Error: Cannot find module 'invariant' at Function.Module._resolveFilename (module.js:538:15) at Function.Module._load (module.js:468:25) at Module.require (module.js:587:17) at require (internal/module.js:11:18) at Object. (K:/rnDemos/30-days-of-react-native-development/node_modules/[email protected]@react-native/packager/react-packager/src/lib/GlobalTransformCache.js:16:19) at Module._compile (module.js:643:30) at loader (K:\rnDemos\30-days-of-react-native-development\node_modules_[email protected]@babel-register\lib\node.js:144:5) at Object.require.extensions.(anonymous function) [as .js] (K:\rnDemos\30-days-of-react-native-development\node_modules_[email protected]@babel-register\lib\node.js:154:7) at Module.load (module.js:556:32) at tryModuleLoad (module.js:499:12)