terraform config_error ai_generated true

Error: Invalid combination of 'count' and 'for_each'

ID: terraform/count-and-for-each-conflict

Also available as: JSON · Markdown
95%Fix Rate
95%Confidence
50Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1 active — — —

Root Cause

Can't use both count and for_each on the same resource. They're mutually exclusive.

generic

Workarounds

  1. 95% success Choose one: use for_each for maps/sets, count for simple numeric iteration 
    use for_each for maps/sets, count for simple numeric iteration

    Sources: https://developer.hashicorp.com/terraform/language/meta-arguments/for_each

  2. 88% success Convert count to for_each: for_each = toset(range(var.instance_count)) 
    for_each = toset(range(var.instance_count))

    Sources: https://developer.hashicorp.com/terraform/language/meta-arguments/for_each

Dead Ends

Common approaches that don't work:

  1. Nest resources inside dynamic blocks 70% fail

    Dynamic blocks are for nested blocks, not resource iteration

Error Chain

Preceded by: