Error: ‘types’ can only be used in a .ts file – Visual Studio Code using @ts-check

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I’m using flow with vscode but had the same problem. I solved it with these steps:

  1. Install the extension Flow Language Support

  2. Disable the built-in TypeScript extension:

    1. Go to Extensions tab
    2. Search for @builtin TypeScript and JavaScript Language Features
    3. Click on Disable

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