@DatabaseSetup unable to load data set

i configured my test environment via java config. At my test I need some data upfront to run it, but when i run the test with the @DatabaseSetup annotation i always get the error

"Unable to load dataset from "personTestData.xml" using class com.github.springtestdbunit.dataset.FlatXmlDataSetLoader"

the file is located at src/test/resources/personTestData.xml. Out of curiosity i moved the file into the same package where the test itself is located, still the same error. I have spent countless hours searching the web for the error, no solution till now. So i hope that maybe you could help me, due to the error message isn't that meaningful.

bg Christoph