Forum OpenACS Development: Missing i18 message in Calendar (simple error)

Hi!

I've found this errors in my error.log relate to i18 of calendar package:

Error: lang::message::lookup: Key 'calendar.prev_month' does not exist in en_US
Error: lang::message::lookup: Key 'calendar.next_month' does not exist in en_US

I'm writing here how to solve this simple error. You have to go to http://YOURSERVER/acs-lang/admin/package-list?locale=en%5fUS and ADD (http://YOURSERVER/acs-lang/admin/localized-message-new?package%5fkey=calendar&locale=en%5fUS ) each of missing messages (prev_month and next_month)