googleauth-1.11.0/lib/googleauth/service_account.rb:87:in unescape': undefined method gsub' for nil:NilClass

[markhorrocks]

• OS: ubuntu 20.04
• Ruby version: 2.7.0
• Gem name and version: googleauth 1.11.0

Steps to reproduce

1. Attempt to use make_creds with json_key

#! /usr/bin/ruby

require 'googleauth'

SERVICE_ACCOUNT_PRIVATE_KEY = "-----BEGIN PRIVATE KEY-----MIIE1234ABCD-----END PRIVATE KEY-----"

begin
credentials = Google::Auth::ServiceAccountCredentials.make_creds(
scope: "https://analyticsreporting.googleapis.com/v4/reports:batchGet",
json_key: SERVICE_ACCOUNT_PRIVATE_KEY
)
rescue => error
puts "Error: #{error.message}"
end

[palladius]

I got the same issue this morning.