diff --git a/tpl/bind_ecslite.twig b/tpl/bind_ecslite.twig
index 6851d9a..0de05e9 100644
--- a/tpl/bind_ecslite.twig
+++ b/tpl/bind_ecslite.twig
@@ -123,13 +123,15 @@
        else 
   {%- endif ~%}
        {
-         dv = Val.New(frm.vm);
          var pool = world.GetPool<{{token_or(o, 'bhl_native_class', o.name)}}>();
          if(pool.Has(id))
          {
+           dv = Val.New(frm.vm);
            var v = pool.Get(id).{{f.name}};
            {{ bhl_bind.native2val(f.type, 'v', 'dv') }};
          }
+         else
+           throw new Exception("No such component '{{token_or(o, 'bhl_native_class', o.name)}}' on entity: " + id);
        }
        stack.Push(dv);
    #endif
@@ -162,10 +164,11 @@
      
      var pool = world.GetPool<{{token_or(o, 'bhl_native_class', o.name)}}>();
 
-     {%~ if m.returntype %}
      if(pool.Has(id))
      {
+     {%~ if m.returntype %}
         var return_val = 
+     {%- endif ~%}
 
         pool.Get(id).{{m.name}}(
        {%- for arg in m.args ~%} __{{arg.name}}{% if not loop.last %},{% endif %} {%- endfor ~%}
@@ -174,18 +177,7 @@
        {{ bhl_bind.return_val(m, 'return_val') }}
      }
      else
-     {
-        //unspecified value
-        var dv = bhl.Val.New(frm.vm);
-        stack.Push(dv);
-     }
-     {%- else ~%}
-
-      pool.Ensure(id).{{m.name}}(
-     {%- for arg in m.args ~%} __{{arg.name}}{% if not loop.last %},{% endif %} {%- endfor ~%}
-       );
-
-     {%- endif ~%}
+       throw new Exception("No such component '{{token_or(o, 'bhl_native_class', o.name)}}' on entity: " + id);
 
     return null;
   }