\app.js
if (configData.MySQL == undefined) { //check existkey MySQL in file if not exist thenconfigData.MySQL.IpAddress == undefined) { //check existkey IpAddress in file if not <e
on type '{ [key: string]: AbstractControl; }'.on type '{ [key: string]: AbstractControl; }'.on type '{ [key: string]: AbstractControl; }'.on type '{ [key: string]: AbstractControl; }'.on type '{ [key: string]: