Bugfix: do not die when no layers are detected at all

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/Slic3r/Print.pm b/lib/Slic3r/Print.pm
index 552e92002..0b3587432 100644
--- a/lib/Slic3r/Print.pm
+++ b/lib/Slic3r/Print.pm
@@ -129,7 +129,7 @@ sub new_from_mesh {
     }
     
     # remove empty layers from bottom
-    while (!@{$print->layers->[0]->slices}) {
+    while (@{$print->layers} && !@{$print->layers->[0]->slices}) {
         shift @{$print->layers};
         for (my $i = 0; $i <= $#{$print->layers}; $i++) {
             $print->layers->[$i]->id($i);