Please provide a minimal demonstration of the problem. At the very least, tell us how it's failing.

• Did you specify coerce=>1 on the attribute?

• Is your coercion routine getting called?

• Is your coercion routine return a reference to a hash as it should (as opposed to a list of key-values)?

• What is your coercion routine returning, exactly? Change

  return ...;
  [download]

  to

  my @x = ...;
  use Data::Dumper;
  warn(Dumper(\@x));
  return $x[0];
  [download]