Packer is an open source project with a growing community. There are active, dedicated users willing to help you through various mediums.

IRC: #packer-tool on Freenode

Announcement list: HashiCorp Announcement Google Group

Discussion list: Packer Google Group

Community Forum: Packer Community Forum

Bug Tracker: Issue tracker on GitHub. Please only use this for reporting bugs. Do not ask for general help here. Use IRC or the mailing list for that.

Training: Paid HashiCorp training courses are also available in a city near you. Private training courses are also available.