Viewer certificate conflict with cloudfront default certificate

[ghost]

This issue was originally opened by @jackhardy1 as hashicorp/terraform#20556. It was migrated here as a result of the provider split. The original body of the issue is below.

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I have recently been getting a certificate conflict error, and am now unable to perform any terraform apply / terraform plan actions. The error I have been getting is as follows:

Error: module.<moduleName>aws_cloudfront_distribution.backoffice-api-cdn: 'viewer_certificate.0.acm_certificate_arn': conflicts with viewer_certificate.0.cloudfront_default_certificate

Error: module.<moduleName>.aws_cloudfront_distribution.backoffice-api-cdn: 'viewer_certificate.0.cloudfront_default_certificate': conflicts with viewer_certificate.0.acm_certificate_arn

Some of my colleagues, however, aren't experiencing this issue, and I don't think this is an issue with the state in S3. This may appear vague, but I'm afraid I'm not sure what the real issue of this problem is - any ideas on how to look into this would be greatly appreciated!

Terraform Version

0.11.11

[bflad]

The fix for this (#7794) has just recently been merged and will release with version 2.1.0 of the Terraform AWS Provider, likely middle of this week. 👍

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. Thanks!