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```import pulumi
import pulumi_aws as aws

staging_vpc = aws.ec2.Vpc(resource_name="staging_vpc", cidr_block="10.0.0.0/16")

private_cidrs = aws.ec2.Subnet("private_cidrs",
    cidr_block="10.0.0.0/19",
    map_public_ip_on_launch=False,
    tags={
        "Name": "private-cidrs",
    },
    vpc_id=staging_vpc["staging_vpc"]["id"])

public_cidrs = aws.ec2.Subnet("public_cidrs",
    cidr_block="10.0.128.0/20",
    map_public_ip_on_launch=False,
    tags={
        "Name": "public-cidrs",
    },
    vpc_id=staging_vpc["staging_vpc"]["id"])


# Export
pulumi.export('staging_vpc_name', staging_vpc.id)
pulumi.export('private_cidrs', private_cidrs.id)
pulumi.export('public_cidrs', public_cidrs.id)```

ive tried several attempts at referencing with no luck. is this a potentially a race condition where the subnets are trying to reference the vpc_id but it doesnt quite exist yet?

this feels like a "getting started" thing but im happy to repost in aws if that seems more approriate

you should be able to just use `staging_vpc.id`  - as the error suggests, the object is not subscriptable

i could have _sworn_ i tried that and got an error that it was expecting a string... but that worked, thanks vivek!!

i guess my main point of confusion stemmed from examples like this from the security group...
```vpc_id=aws_vpc["main"]["id"]```
is `aws_vpc` in this case not the same type of resource i created for `staging_vpc` ?