Setup fails if environment is not set

[tillkahlbrock]

The setup produces an error, if I do not explicitly set an environment I want to deploy to.
I guess this is totally fine, but it's described in the documentation.

Reproduction Steps

Follow the setup instructions in the readme to the npx cdk deploy step.

What did you expect to happen?

The docs should tell me about the need to set the environment.

What actually happened?

npx cdk deploy

Cannot retrieve value from context provider hosted-zone since account/region are not specified at the stack level. Either configure "env" with explicit account and region when you define your stack, or use the environment variables "CDK_DEFAULT_ACCOUNT" and "CDK_DEFAULT_REGION" to inherit environment information from the CLI (not recommended for production stacks)

Environment

• CDK CLI Version: 1.89.0 (build df7253c)
• Version: 0.1.7
• Node.js Version: v14.10.1
• OS : Mac OS
• Language (Version): TypeScript (4.1.5)

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This is 🐛 Bug Report

[tillkahlbrock]

This seems to be a bigger issue with how cdk cli handles credentials and profiles (details aws/aws-cdk#1656).