I'm trying to just launch webservers into my webservers security group, but I get this:
$ aws ec2 run-instances --image-id ami-someami --count 2 --instance-type m3.medium --key-name some_key --security-groups Webservers
A client error (InvalidParameterCombination) occurred when calling the RunInstances operation: VPC security groups may not be used for a non-VPC launch
What gives? I just want to launch boxes into my default VPC. I don't want to specify a subnet, but even if I do, I can no longer specify my security group. I'm new to EC2, and would rather not worry about doing non-default things with my VPC until I have to.