NoMethodError for bootstrap-editable-rails Sprocket 4.0.x

[medha243]

Hi,

I'm receiving the following error:

undefined method 'start_with?' for /bootstrap-editable\/.*\.(?:png|gif)$/:Regexp

def valid_asset_uri?(str)
  # Quick prefix check before attempting a full parse
  str.start_with?("file://".freeze) && parse_asset_uri(str) ? true : false
 rescue URI::InvalidURIError
  false
end

Line causing issue: https://github.com/bootstrap-ruby/bootstrap-editable-rails/blob/master/lib/bootstrap-editable-rails.rb
Gem consumed: https://rubygems.org/gems/bootstrap-editable-rails/versions/0.0.9 On removing this gem the error goes, but I cannot use .editable anymore.
Sprocket: https://www.rubydoc.info/gems/sprockets/4.0.0

Already removed all assets.precompile.
I have seen documentation for this error in github but it doesn't fit my case.

Any pointers will help!