Error installing provider "aws": openpgp: signature made by unknown entity

My provider code in init.tf is as below : provider "aws" { shared_credentials_file = "~/.aws/credentials" region = "us-east-1" } Terraform version I am using is : 0.11.14 I am getting error as below while doing terraform init: Error installing provider "aws": openpgp: signature made by unknown entity. Terraform analyses the configuration and state and automatically downloads plugins for the providers used. However, when attempting to download this plugin an unexpected error occured. This may be caused if for some reason Terraform is unable to reach the plugin repository. The repository may be unreachable if access is blocked by a firewall. If automatic installation is not possible or desirable in your environment, you may alternatively manually install plugins by downloading a suitable distribution package and placing the plugin's executable file in the following directory: terraform.d/plugins/windows_amd64