Couldn't find manifest for 'ios-webkit-debug-proxy' code example

Example: could not find manifest for ios-webkit-debug-proxy

PS C:\Users\OPT> scoop bucket add extras
Checking repo... ok
The extras bucket was added successfully.
PS C:\Users\OPT> scoop install ios-webkit-debug-proxy
Updating Scoop...
Updating 'extras' bucket...
WARN  Scoop configuration has been migrated from '~/.scoop'
WARN  to 'C:\Users\OPT\.config\scoop\config.json'
WARN  The main bucket of Scoop has been separated to 'https://github.com/ScoopInstaller/Main'
WARN  You don't have the main bucket added, adding main bucket for you...
Checking repo... ok
The main bucket was added successfully.
'lastupdate' has been set to '2019-11-26T09:38:15.7859191-08:00'
Scoop was updated successfully!
WARN  Bucket '' not installed. Add it with 'scoop bucket add ' or 'scoop bucket add  <repo>'.
Couldn't find manifest for 'ios-webkit-debug-proxy'.
PS C:\Users\OPT>