Após finalizar a atividade, e testar a aplicação, o angular/cli apresentou o seguinte erro:
chunk {main} main.js, main.js.map (main) 2.09 kB [initial] [rendered]
chunk {polyfills} polyfills.js, polyfills.js.map (polyfills) 725 bytes [initial] [rendered]
chunk {runtime} runtime.js, runtime.js.map (runtime) 6.15 kB [entry] [rendered]
chunk {styles} styles.js, styles.js.map (styles) 1.14 MB [initial] [rendered]
chunk {vendor} vendor.js, vendor.js.map (vendor) 339 kB [initial] [rendered]
Date: 2020-04-19T03:04:13.106Z - Hash: efa9cf5c98cfb849e90b - Time: 8145ms
ERROR in Maximum call stack size exceeded
** Angular Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ **
O que eu faço????