Error at first on `ionic serve`, then working app on re-save of file

When I first run `ionic serve` I get a page with some Typescript errors:

```
Error

Typescript Error
Property 'padStart' does not exist on type 'string'.
...

Typescript Error
Property 'values' does not exist on type 'ObjectConstructor'.
...

Typescript Error
Property 'values' does not exist on type 'ObjectConstructor'.
...

Typescript Error
Property 'values' does not exist on type 'ObjectConstructor'.
...

Typescript Error
Property 'xAxes' does not exist on type '{ yAxes: { ticks: { beginAtZero: boolean; }; }[]; }'.
...
```

This is all true, but when I just resave any file of my project this all doesn't matter any more as the project is reloaded and just works.

My `ionic info`:

```
λ ionic info
√ Gathering environment info - done!

Ionic:

ionic (Ionic CLI) : 4.1.2 (C:\nvm\v10.7.0\node_modules\ionic)
Ionic Framework : ionic-angular 3.5.3
@ionic/app-scripts : 3.2.0

Cordova:

cordova (Cordova CLI) : 8.0.0
Cordova Platforms : android 7.1.1, ios 4.5.5
Cordova Plugins : no whitelisted plugins (8 plugins total)

System:

Android SDK Tools : 26.1.1 (C:\Android)
NodeJS : v10.7.0 (C:\Program Files\nodejs\node.exe)
npm : 6.1.0
OS : Windows 10
```