^CAdmins-MacBook-Pro:helloapp admin$ npm run dev

> [email protected] dev /Users/admin/Documents/helloapp
> webpack-dev-server --hot --open

ℹ ｢wds｣: Project is running at http://localhost:8080/
ℹ ｢wds｣: webpack output is served from /public/
ℹ ｢atl｣: Using [email protected] from typescript
ℹ ｢atl｣: Using tsconfig.json from /Users/admin/Documents/helloapp/tsconfig.json
ℹ ｢atl｣: Checking started in a separate process...
✖ ｢atl｣: Checking finished with 30 errors
✖ ｢wdm｣: Hash: 5037167aba11700f3bae
Version: webpack 4.14.0
Time: 22667ms
Built at: 07/02/2018 2:07:17 PM
 2 assets
Entrypoint polyfills = polyfills.js
Entrypoint app = app.js
 [47] (webpack)/hot/log.js 1010 bytes {0} {1} [built]
[108] (webpack)/hot/dev-server.js 1.6 KiB {0} {1} [built]
[110] (webpack)/hot sync nonrecursive ^\.\/log$ 170 bytes {0} {1} [built]
[115] (webpack)-dev-server/client/overlay.js 3.58 KiB {0} {1} [built]
[117] (webpack)-dev-server/client/socket.js 1.05 KiB {0} {1} [built]
[118] ./node_modules/loglevel/lib/loglevel.js 7.68 KiB {0} {1} [built]
[120] (webpack)-dev-server/node_modules/strip-ansi/index.js 161 bytes {0} {1} [built]
[127] ./node_modules/url/url.js 22.8 KiB {0} {1} [built]
[128] (webpack)-dev-server/client?http://localhost:8080 7.75 KiB {0} {1} [built]
[167] ./src/main.ts 286 bytes {0} [built]
[168] multi (webpack)-dev-server/client?http://localhost:8080 webpack/hot/dev-server ./src/main.ts 52 bytes {0} [built]
[180] ./node_modules/core-js/es7/reflect.js 510 bytes {1} [built]
[326] ./node_modules/core-js/es6/index.js 5.74 KiB {1} [built]
[327] ./src/polyfills.ts 185 bytes {1} [built]
[328] multi (webpack)-dev-server/client?http://localhost:8080 webpack/hot/dev-server ./src/polyfills.ts 52 bytes {1} [built]
    + 464 hidden modules

WARNING in ./node_modules/@angular/core/fesm5/core.js 4911:15-36
System.import() is deprecated and will be removed soon. Use import() instead.
For more info visit https://webpack.js.org/guides/code-splitting/
 @ ./src/app/app.module.ts 9:13-37
 @ ./src/main.ts
 @ multi (webpack)-dev-server/client?http://localhost:8080 webpack/hot/dev-server ./src/main.ts

WARNING in ./node_modules/@angular/core/fesm5/core.js 4923:15-102
System.import() is deprecated and will be removed soon. Use import() instead.
For more info visit https://webpack.js.org/guides/code-splitting/
 @ ./src/app/app.module.ts 9:13-37
 @ ./src/main.ts
 @ multi (webpack)-dev-server/client?http://localhost:8080 webpack/hot/dev-server ./src/main.ts

WARNING in configuration
The 'mode' option has not been set, webpack will fallback to 'production' for this value. Set 'mode' option to 'development' or 'production' to enable defaults for each environment.
You can also set it to 'none' to disable any default behavior. Learn more: https://webpack.js.org/concepts/mode/

ERROR in [at-loader] ./node_modules/rxjs/internal/Observable.d.ts:82:59
    TS2693: 'Promise' only refers to a type, but is being used as a value here.

ERROR in [at-loader] ./src/app/app.component.ts:9:14
    TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.

ERROR in [at-loader] ./src/app/app.module.ts:10:14
    TS1219: Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:829:20
    TS2304: Cannot find name 'PromiseConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1486:36
    TS2339: Property 'for' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1490:43
    TS2339: Property 'hasInstance' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1494:50
    TS2339: Property 'isConcatSpreadable' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1502:38
    TS2339: Property 'keyFor' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1506:37
    TS2339: Property 'match' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1510:39
    TS2339: Property 'replace' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1514:38
    TS2339: Property 'search' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1518:39
    TS2339: Property 'species' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1522:37
    TS2339: Property 'split' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1526:43
    TS2339: Property 'toPrimitive' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1530:43
    TS2339: Property 'toStringTag' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:1534:43
    TS2339: Property 'unscopables' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2305:36
    TS2339: Property 'for' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2309:43
    TS2339: Property 'hasInstance' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2313:50
    TS2339: Property 'isConcatSpreadable' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2321:38
    TS2339: Property 'keyFor' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2325:37
    TS2339: Property 'match' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2329:39
    TS2339: Property 'replace' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2333:38
    TS2339: Property 'search' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2337:39
    TS2339: Property 'species' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2341:37
    TS2339: Property 'split' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2345:43
    TS2339: Property 'toPrimitive' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2349:43
    TS2339: Property 'toStringTag' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:2353:43
    TS2339: Property 'unscopables' does not exist on type 'SymbolConstructor'.

ERROR in [at-loader] ./node_modules/@types/node/index.d.ts:6225:59
    TS2304: Cannot find name 'WeakMap'.

ERROR in [at-loader] ./node_modules/@types/node/index.d.ts:6226:59
    TS2304: Cannot find name 'WeakSet'.
ℹ ｢wdm｣: Failed to compile.