Improved error message.
Improved error message.


hradec/cortex,davidsminor/cortex,goddardl/cortex,davidsminor/cortex,danieldresser/cortex,hradec/cortex,danieldresser/cortex,danieldresser/cortex,lento/cortex,hradec/cortex,lento/cortex,lento/cortex,davidsminor/cortex,davidsminor/cortex,goddardl/cortex,appleseedhq/cortex,appleseedhq/cortex,appleseedhq/cortex,goddardl/cortex,danieldresser/cortex