slather: Fail test code coverage not found coverage directory in Xcode 10.1

Can’t show code coverage in my Mac and in my Jenkins,

bundle exec slather coverage -s --scheme "Reactive iOS" --workspace Reactive.xcworkspace Reactive.xcodeproj/

Result

Slathering...
No coverage directory found.

	Are you sure your project is generating coverage? Make sure you enable code coverage in the Test section of your Xcode scheme.
	Did you specify your Xcode scheme? (--scheme or 'scheme' in .slather.yml)
	If you're using a workspace, did you specify it? (--workspace or 'workspace' in .slather.yml)

bundler: failed to load command: slather (/Users/amine/.rbenv/versions/2.5.3/bin/slather)
StandardError: No coverage directory found.
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/slather-2.4.0/lib/slather/project.rb:178:in `profdata_coverage_dir'
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/slather-2.4.0/lib/slather/project.rb:403:in `block in find_binary_files'
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/slather-2.4.0/lib/slather/project.rb:402:in `each'
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/slather-2.4.0/lib/slather/project.rb:402:in `find_binary_files'
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/slather-2.4.0/lib/slather/project.rb:348:in `configure_binary_file'
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/slather-2.4.0/lib/slather/project.rb:242:in `configure'
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/slather-2.4.0/lib/slather/command/coverage_command.rb:51:in `execute'
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/clamp-0.6.5/lib/clamp/command.rb:67:in `run'
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/clamp-0.6.5/lib/clamp/subcommand/execution.rb:11:in `execute'
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/clamp-0.6.5/lib/clamp/command.rb:67:in `run'
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/clamp-0.6.5/lib/clamp/command.rb:132:in `run'
  /Users/amine/.rbenv/versions/2.5.3/lib/ruby/gems/2.5.0/gems/slather-2.4.0/bin/slather:17:in `<top (required)>'
  /Users/amine/.rbenv/versions/2.5.3/bin/slather:23:in `load'
  /Users/amine/.rbenv/versions/2.5.3/bin/slather:23:in `<top (required)>'