Demo Not working

[franconeilglovasa]

Got this error when I try to run demo-ng

PS C:\Users\franc\Downloads\nativescript-videoplayer-master\nativescript-videoplayer-master\demo-ng> ns run android
Searching for devices...
Preparing project...
The webpack configuration file C:\Users\franc\Downloads\nativescript-videoplayer-master\nativescript-videoplayer-master\demo-ng\webpack.config.js does not exist. Ensure the file exists, or update the path in nativescript.config.(js|ts).

this is the error for the demo:

PS C:\Users\franc\Downloads\nativescript-videoplayer-master\nativescript-videoplayer-master\demo> ns run android
The current application is not compatible with NativeScript CLI 8.3.3.

Run 'ns migrate' to migrate your project to the latest NativeScript version.

Alternatively you may try running it with '--force' to skip this check.