_ "gocloud.dev/blob/fileblob" // import
        _ "gocloud.dev/blob/gcsblob"  // import
        _ "gocloud.dev/blob/s3blob"   // import
+       "gocloud.dev/gcerrors"
 )
 
 // Deployer supports deploying the site to target cloud providers.
                        go func(del string) {
                                jww.INFO.Printf("Deleting %s...\n", del)
                                if err := bucket.Delete(ctx, del); err != nil {
-                                       errMu.Lock()
-                                       defer errMu.Unlock()
-                                       errs = append(errs, err)
+                                       if gcerrors.Code(err) == gcerrors.NotFound {
+                                               jww.WARN.Printf("Failed to delete %q because it wasn't found: %v", del, err)
+                                       } else {
+                                               errMu.Lock()
+                                               defer errMu.Unlock()
+                                               errs = append(errs, err)
+                                       }
                                }
                                <-sem
                        }(del)