Change8
Error2 reports

Fix GenericTypeError

in Vitest

Solution

GenericTypeError in Vitest often arises from missing or mismatched dependencies, particularly Chai matchers. Ensure all necessary dependencies, including `@testing-library/jest-dom` or similar Chai plugins, are correctly installed and configured in your `vitest.config.ts` file, using `setupFiles` to import the required matchers. Verify that package versions are compatible and that any custom matchers are correctly defined and registered.

Timeline

First reported:Dec 5, 2025
Last reported:Dec 11, 2025

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