while creating backend in gcp using terraform getting below errors.
Error loading state: Failed to open state file at gs://tf-state-demo/demo-terraform.state/default.tfstate: googleapi: got HTTP response code 403 with body: AccessDeniedAccess denied.service account does not have storage.objects.get access to the Google Cloud Storage object.
i have given full storage admin role to service account used for creating bucket.
It's an issue with your environment configuration. Terraform use the application default credentials (ADC), therefore you need to create the environment variable GOOGLE_APPLICATION_CREDENTIALS equal to the absolute path of your service account key file.
If you want to avoid to use service account key file (and you have right, because of security reasons), you can use your own credential by doing gcloud auth application-default login
Note: the environment variable has the highest precedence on any other ADC modes
