brew services cleanup error of "Error: undefined method `pid?' for "homebrew.mxcl.mysql":String"

[gedw99]

brew services cleanup     
Warning: Service homebrew.mxcl.code not managed by `brew services` => skipping
Error: undefined method `pid?' for "homebrew.mxcl.mysql":String
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-services/lib/service/services_cli.rb:158:in `block in kill'
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-services/lib/service/services_cli.rb:157:in `each'
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-services/lib/service/services_cli.rb:157:in `kill'
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-services/lib/service/services_cli.rb:47:in `kill_orphaned_services'
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-services/lib/service/commands/cleanup.rb:13:in `run'
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-services/cmd/services.rb:101:in `services'
/usr/local/Homebrew/Library/Homebrew/brew.rb:110:in `<main>'


brew services info --all  
cockroach (homebrew.mxcl.cockroach)
Running: ✘
Loaded: ✘
Schedulable: ✘
consul (homebrew.mxcl.consul)
Running: ✘
Loaded: ✘
Schedulable: ✘
etcd (homebrew.mxcl.etcd)
Running: ✘
Loaded: ✘
Schedulable: ✘
nomad (homebrew.mxcl.nomad)
Running: ✘
Loaded: ✘
Schedulable: ✘
postgresql (homebrew.mxcl.postgresql)
Running: ✘
Loaded: ✘
Schedulable: ✘
redis (homebrew.mxcl.redis)
Running: ✘
Loaded: ✘
Schedulable: ✘
unbound (homebrew.mxcl.unbound)
Running: ✘
Loaded: ✘
Schedulable: ✘
vault (homebrew.mxcl.vault)
Running: ✘
Loaded: ✘
Schedulable: ✘