**Which version of the application are you using?:**
Drupal 7.59-4 stack
**Please choose how you got the application: Installer (Windows, Linux, macOS), cloud image (AWS, GCE, Azure, ...) or VM (VMDK, VBOX):**
install on aws ec2 (Linux: 64bit Amazon Linux AMI)
**Have you installed any plugin or modified any configuration file?:**
**Describe here your question/suggestion/issue (expected and actual results):**
I try to use Amazon ElastiCache redis for my drupal site
but drupal console always notice me the error infomation:
"Notice: Undefined index: description in drupal_check_module() (line 1244 of /opt/bitnami/apps/drupal/htdocs/includes/install.inc).
(Currently using Memcache Required PHP extension not found. Install the memcache (recommended) or memcached extension.)"
How can I fix this issue?
I need setup by setup to guide me.