ec2.Vpc.from_lookup で account/region が指定されていない対処方法

スタックは次の通りです。

import aws_cdk as cdk
import aws_cdk.aws_ec2 as ec2
from constructs import Construct

class ExistsVpcDeploy(cdk.Stack):
    def __init__(self, scope: Construct, construct_id: str, **kwargs) -> None:
        super().__init__(scope, construct_id, **kwargs)
        
        environment_type = self.node.try_get_context("environmentType")
        environment_context = self.node.try_get_context(environment_type)
        region = environment_context["region"]
        account = self.node.try_get_context("account")

        vpcid = self.node.try_get_context("vpcid")

        vpc = ec2.Vpc.from_lookup(self,"VPC",vpc_id=vpcid)

app.py は次の通りです。

environment = Environment(
     account = account,
     region = region
)

PipelineStack(
    app,
    "test-stack",
    env = environment

ec2.Vpc.from_lookup の箇所で次のエラーになる原因と修正方法がご存じの方がいらっしゃれば教えて下さい。

RuntimeError: Error: Cannot retrieve value from context provider vpc-provider since account/region are not specified at the stack level. Configure "env" with an account and region when you define your stack.See https://docs.aws.amazon.com/cdk/latest/guide/environments.html for more details.