Pat Myron

@anshikg believe those are [CloudFormation exports](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-stack-exports.html) as described in https://github.com/aws-cloudformation/cloudformation-cli/pull/411, not [dynamic references](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/dynamic-references.html)

the solution to https://github.com/aws-cloudformation/cloudformation-cli/issues/630 might help with this once there's a solution for that https://github.com/aws-cloudformation/cloudformation-cli/issues/274 also seems very similar

> seen some examples using a special (?) file with an _exports naming convention, anyone knows if this should work? file name itself isn't special, believe that's just [CloudFormation exports](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-stack-exports.html)...

> if nothing is special about the file name, where in the build/package process is this run? Meaning how can I point to this file when running `cfn test` (locally...

[looks merged into the VSCode extension](https://github.com/aws-cloudformation/aws-cfn-lint-visual-studio-code/blob/089b197e2c7df4ec26d35c23ebb77383c724a86e/client/src/extension.ts#L57) in [this PR](https://github.com/aws-cloudformation/aws-cfn-lint-visual-studio-code/pull/70). [Started recommending the extension here](https://github.com/aws-cloudformation/aws-cloudformation-template-schema/pull/45), but might as well not leave this outdated as well: https://github.com/aws-cloudformation/aws-cloudformation-template-schema/blob/6ee1ccd8a9e2efd3e41c8d3b6028ea138a4c971a/docs/vscode/instructions.md#L32-L49

not surprised CloudFormation doesn't have our own validation for that, but surprised it generated successfully since duplicates keys are not usually valid JSON as far as I know thanks for...

Not finding most of the [attributes](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-product-attribute-reference.html) [(couple missing from that page)](https://github.com/aws-cloudformation/cfn-python-lint/blob/93659fba5cf86ee34177c55b28df0aa9140b7dc9/src/cfnlint/rules/resources/Configuration.py#L23) explicitly from searching this codebase at least

> I don't see this error in my IDE if using the [CloudFormation extension](https://marketplace.visualstudio.com/items?itemName=kddejong.vscode-cfn-lint), this might be because [it defaults schema validation off](https://github.com/aws-cloudformation/aws-cfn-lint-visual-studio-code/issues/97) Reproduced with schema validation on: [`Property Condition...

duplicate of https://github.com/aws-cloudformation/cloudformation-cli/issues/511?

ran into this in https://github.com/aws-cloudformation/cloudformation-cli/pull/723 as well similar to https://github.com/aws-cloudformation/cloudformation-cli/issues/286