Error importing TypeScript file into the configuration file - unknown file extension

[Ixluxi]

Hi,

I have a package installed (one I created) that contains a TypeScript file called test-data-utilities.ts

In my config file (qa.config.ts), I try to import it, but it imports (auto-completes) as .js...

import TestDataUtilities from '@mypackage/cypress-test-data-utilities/test-data-utilities.js'

So I switch '.js' to '.ts' and try to use the class:

const testDataUtilities = new TestDataUtilities()

I get error:

Your configFile is invalid: C:\Users\me\Desktop\automation\projects\ProjectName\FrameworkName\cypress\configurations\qa.config.ts

It threw an error when required, check the stack trace below:

TypeError: Unknown file extension ".ts" for C:\Users\me\Desktop\automation\projects\ProjectName\FrameworkName\cypress\configurations\qa.config.ts

I have TypeScript installed in the framework, but does the package itself need to have TypeScript installed? (typescript is not present in the package's list of dependencies).

Thank you for any help you can provide.

EDIT: The work-around is to change my package file to js or bake the methods into each config file, which defeats the point of using TypeScript.