When run terraform apply following errors are occured

[AdnanLatif]

Error: Error applying plan:

1 error(s) occurred:

• aws_instance.example: 1 error(s) occurred:

• aws_instance.example: Error launching source instance: InvalidParameterCombina
  tion: Virtualization type 'hvm' is required for instances of type 't2.micro'. En
  sure that you are using an AMI with virtualization type 'hvm'. For more informat
  ion, see http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/virtualization_types
  .html
  status code: 400, request id: e5d3c3dc-eaaa-4131-aadf-850069169b07

Terraform does not automatically rollback in the face of errors.
Instead, your Terraform state file has been partially updated with
any resources that successfully completed. Please address the error
above and apply again to incrementally change your infrastructure.

[hemi-hga]

This error seems to be more relevant for your use case of terraform and AWS EC2.
Read more about Virtualization types and EC2 instances, the following links may help you with this issue.

https://aws.amazon.com/amazon-linux-ami/instance-type-matrix/
https://www.terraform.io/docs/providers/aws/r/ami.html