For VPC associate_public_ip=true and private_ip_address combination fails

[sujeetv]

A Combination of
aws.subnet_id=""
aws.private_ip_address = "xx.xx.xxx.xx"
aws.associate_public_ip=true

fails with:
InvalidParameterCombination => Network interfaces and an instance-level private IP address may not be specified on the same request

Reference on similar issues with AWS-cli.:
aws/aws-cli#520

[sujeetv]

This is probably fixed in the dev branch of fog. Is there a way I can tell vagrant-aws plugin to use a custom gem of fog?

[sujeetv]

I confirmed that if I build against the master branch of fog them then issue is resolved.

This is the commit in fog that resolves that:
fog/fog@7f2134a