NS/Angular app not working with latest CLI

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 5.4.2
• Cross-platform modules: Core modules? if so, 5.4.3
• Android Runtime: 5.4.0
• iOS Runtime: N/A
• Plugin(s):
  "nativescript-angular": "5.0.0",
  "nativescript-bluetooth": "^1.2.0",
  "nativescript-camera": "^3.2.1",
  "nativescript-estimote-plugin": "file:estimote-nativescript-plugin",
  "nativescript-exit": "^1.0.1",
  "nativescript-floatingactionbutton": "^4.1.0",
  "nativescript-geolocation": "^4.2.3",
  "nativescript-imagecropper": "^0.1.2",
  "nativescript-imagepicker": "^4.0.0",
  "nativescript-in-app-notifications": "^0.1.0",
  "nativescript-iqkeyboardmanager": "^1.1.0",
  "nativescript-loading-indicator": "^2.3.2",
  "nativescript-local-notifications": "file:nativescript-local-notifications",
  "nativescript-theme-core": "~1.0.4",
  "nativescript-toast": "^1.4.6",
  "nativescript-vibrate": "^2.0.1",

Describe the bug
I had been working on a NS/Angular project for a month or so. The code base isn't mine and is a bit old, but I'm doing some updates/bug fixes/etc. I was working just fine, when I noticed issues testing on a new phone. I checked to see if my CLI was out of date, it was, so I updated to 5.4.2.

At that point, things went to heck in a handbasket. The CLI prompted me to update to webpack usage, I said yes, and nothing worked right.

I reverted, tried again, and told it no. I've also run tns update.

Now I get the following output when doing tns build android,

In file C:\projects\prism\wms\RediTrak2.0\app\utils\offline-util.ts line import {isIOS} from "platform" is short import. Add tns-core-modules/ in front of the required/imported module.

In file C:\projects\prism\wms\RediTrak2.0\app\utils\tapsound-util.ts line import {isIOS} from "platform" is short import. Add tns-core-modules/ in front of the required/imported module.

In file C:\projects\prism\wms\RediTrak2.0\app\utils\tapsound-util.ts line import * as app from "application" is short import. Add tns-core-modules/ in front of the required/imported module.

In file C:\projects\prism\wms\RediTrak2.0\app\utils\trackKeyboard-util.ts line import {isIOS} from "platform" is short import. Add tns-core-modules/ in front of the required/imported module.

In file C:\projects\prism\wms\RediTrak2.0\app\utils\trackKeyboard-util.ts line import {ios} from "application" is short import. Add tns-core-modules/ in front of the required/imported module.

In file C:\projects\prism\wms\RediTrak2.0\app\utils\trackKeyboard-util.ts line import {topmost} from "ui/frame" is short import. Add tns-core-modules/ in front of the required/imported module.

In file C:\projects\prism\wms\RediTrak2.0\app\vendor-platform.android.ts line require("application") is short import. Add tns-core-modules/ in front of the required/imported module.

In file C:\projects\prism\wms\RediTrak2.0\app\vendor-platform.android.ts line require("ui/frame") is short import. Add tns-core-modules/ in front of the required/imported module.

In file C:\projects\prism\wms\RediTrak2.0\app\vendor-platform.android.ts line require("ui/frame/activity") is short import. Add tns-core-modules/ in front of the required/imported module.

In file C:\projects\prism\wms\RediTrak2.0\app\vendor.ts line const application = require("application") is short import. Add tns-core-modules/ in front of the required/imported module.

In file C:\projects\prism\wms\RediTrak2.0\app\vendor.ts line require("ui/styling/style-scope") is short import. Add tns-core-modules/ in front of the required/imported module.

Found peer TypeScript 2.4.2
node_modules/tns-core-modules/ui/frame/frame.d.ts(6,32): error TS6143: Module './frame-common' was resolved to 'C:/projects/prism/wms/RediTrak2.0/node_modules/tns-core-modules/ui/frame/frame-common.js', but '--allowJs' is not set.
node_modules/tns-core-modules/ui/styling/gradient.d.ts(7,25): error TS6143: Module '../../css/parser' was resolved to 'C:/projects/prism/wms/RediTrak2.0/node_modules/tns-core-modules/css/parser.js', but '--allowJs' is not set.
TypeScript compiler failed with exit code 1

To Reproduce
Not sure what to suggest here. As I said, it was an absolutely working project with an earlier version of the CLI.

Expected behavior
For it to build. :)

Start by reproducing tns build android with the listed CLI, runtime, plugin, and TypeScript versions. Inspect the short imports in app/utils/offline-util.ts, app/utils/tapsound-util.ts, app/utils/trackKeyboard-util.ts, app/vendor.ts, and app/vendor-platform.android.ts, along with the reported tns-core-modules errors. Done means the existing project builds successfully.