I keep getting this error when running the example on this page
https://docs.microsoft.com/en-us/aspnet/core/client-side/spa-services?view=aspnetcore-2.0#webpack-dev-middleware
System.AggregateException: One or more errors occurred. (Webpack dev middleware failed because of an error while loading 'aspnet-webpack'. Error was: Error: Cannot find module 'webpack' 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.<anonymous> (C:\Users\choles\source\repos\WebApplication1test\WebApplication1test\node_modules\aspnet-webpack\WebpackDevMiddleware.js:4:15) at Module._compile (module.js:643:30) at Object.Module._extensions..js (module.js:654:10) at Module.load (module.js:556:32) at tryModuleLoad (module.js:499:12) at Function.Module._load (module.js:491:3)