Created attachment 2352 [details] error.txt The error is attached (error.txt). Toaster should handle unavailable artifacts as shown in the attached design document, instead of falling apart.
Created attachment 2353 [details] Design - Handling unavailable artifacts
Pushed for review with changes to design poky-contrib:adamian/201502016_download_bugs_72207206 Checking if the artifact exists is an expensive operation; the change brings in an error page displayed if the artifact is not available for download, instead of checking prior to displaying a download icon.
Merged in master.
Verified on master: 369932178fe9e7aa4a6d0e2ef1e2e539be701d02