ionic-cli: exception ionic cordova run browser after upgrade to 3.15.0

Description:

after upgrade to ionic cli 3.15.0 fired an exception only downgrade to 3.14.0 ionic cordova run browser works fine

$ ionic cordova run browser

cordova platform add browser --save Using cordova-fetch for cordova-browser@^4.1.0

Error: Platform browser already added.

[ERROR] Exception:

My ionic info:

$ ionic info

? The Ionic CLI has an update available (3.14.0 => 3.15.0)! Would you like to install it? No Not automatically updating your CLI.

cli packages: (C:\Users\kukoba.av\AppData\Roaming\npm\node_modules)

@ionic/cli-utils  : 1.14.0
ionic (Ionic CLI) : 3.14.0

global packages:

cordova (Cordova CLI) : 7.0.1

local packages:

@ionic/app-scripts : 2.1.4
Cordova Platforms  : android 6.2.3 browser 4.1.0
Ionic Framework    : ionic-angular 3.6.1

System:

Android SDK Tools : 25.2.3
Node              : v6.11.2
npm               : 3.10.10
OS                : Windows 10

Misc:

backend : legacy