Problem with ionic cordova build browser


I try run my ionic project that is hosted on a remote server (Debian) like a website but when I run the command "ionic cordova build browser --prod" I get this error:


Global packages:

Ionic CLI : 4.10.2
Cordova CLI : 8.1.2

Local packages:

@ionic/app-scripts : 3.2.2
Cordova Platforms  : browser 5.0.4
Ionic Framework    : ionic-angular 3.9.2


Node       : v11.9.0
OS         : Debian 9 x64 (stretch)
npm        : 6.5.0

Thanks for your attention. I’m looking forward to your reply.