Monday, December 5, 2011

MSTEST - UTA004: Illegal use of attribute on testmethod

Have you seem this error UTA004: Illegal use of attribute on testmethod. The TestMethodAttribute can be defined only inside a class marked with the TestClass attribute. while trying to run a mstest unit test.
The common scenario when this occurs is if there is a method with [TestMethod] attribute but the class in which it is defined does not have [TestClass] attribute.
However, even if you add the [TestClass] attribute and the error does not go away, the reason is that the class is not public.

Hence, make sure that the class is public and it has [TestClass] attribute.

20 comments:

  1. Awesome! Thanks so much. I guess it needs to be public so that the test runner executable can see it.

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  2. Awesome! Thanks so much. I guess it needs to be public so that the test runner executable can see it.

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  3. Thanks that fixed the problem for me.

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  4. Thanks! Saved me a lot of frustration.

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  5. Thanks.. This information helped me.

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  6. It helped a lot. Thanks!

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  7. Thank you very much :)

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  8. Thanks that helped

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  9. Thanks , that did the trick !!!

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