# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2017-07-10 20:09:43 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/884504930979119106) In reply to: [@steipete](http://twitter.com/steipete/status/884499222107746304) @steipete Think it only happens on mixed Obj-C / Swift targets. If it's Swift only, it doesn't complain.... That probably doesn't help though.