undefined method `resource_files' for #<Chef::Cookbook:0x7f07cae8c1e0>

using Chef 0.7.16.

This error happens when I click a cookbook on the the webui. Do any guys
meet this before?

No Method Error 500undefined method `resource_files’ for
#Chef::Cookbook:0x7f07cae8c1e0

Thanks
Dikang.