"moment" has no exported member 'default'

Try adding "allowSyntheticDefaultImports": true to your tsconfig.json under the "compilerOptions"

You seems to have trouble importing moment

As you can see in the documentation, For Typescript 2.x try adding "moduleResolution": "node" in compilerOptions in your tsconfig.json file and then use any of the below syntax:

import * as moment from 'moment';
import moment = require('moment');

PS: Make sure you have installed moment.js with npm:

npm install --save moment