'Error in load generator', The provided corpus does not match any of the corpora

I have a custom tracks where I have 2 corpora defined lets say dataset1 and dataset2, when I run the challenge rally is recognising the corpora and preparing offset tables also in the corresponding directory. But it's throwing error message saying
esrally.exceptions.RallyError: ('Error in load generator', The provided corpus ['corpora1', 'corpora2'] does not match any of the corpora ['corpora1', 'corpora2'].)

Hi @Dileep_Kumar_Dora,

Can you paste your track here or in a link as it's really difficult to diagnose the issue without seeing how it looks like?

Thanks,
Dimitris