better error message (#6911)
better error message (#6911)


danking/hail,danking/hail,danking/hail,hail-is/hail,cseed/hail,cseed/hail,cseed/hail,danking/hail,danking/hail,hail-is/hail,hail-is/hail,hail-is/hail,cseed/hail,cseed/hail,danking/hail,hail-is/hail,cseed/hail,cseed/hail,hail-is/hail,hail-is/hail,cseed/hail,hail-is/hail,danking/hail,danking/hail