"publisher_service_account" expects value though its not specified in pubsub module being optional field

[ghost]

This issue was originally opened by @shefaliA as hashicorp/terraform#25155. It was migrated here as a result of the provider split. The original body of the issue is below.

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Hi,
I am trying to use TF pubsub mofule for creating topic in GCP . I am getting below error when deploying module

Error: Unassigned variable
2020-06-05T18:10:07.8073851Z
2020-06-05T18:10:07.8074455Z The input variable "publisher_service_account" has not been assigned a value

[venkykuberan]

@shefaliA it doesn't seem anything provider related, you aren't passing value to your config. Please pass on your plan output, will see if we can help.

[melinath]

closing due to lack of information.

[github-actions]

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