I am doing the  response analysis in Ansys AQWA. In that, I am getting errors 

1) Elements must be atleast 1.000* facet radius apart

2) Element number __ is 1.__ times too large for frequency number __.

3) Aspect ratio of element number __ is less than the minimum of 0.333.

4) The ratio of areas of adjacent elements must be less than 0.333. Element __ violates this condition.

I have resolved the 2,3 and 4 error by changing the mesh size in mesh parameters (Defeaturing tolerance, max. element size), but still struck with error 1. I think there is no effect of defeaturing tolerances, as I have varied it from 0.1 to 0.0001 m for different max. element size from 1 to 100m but there is no change in max. allowed frequency and the generated mesh information parameters etc.

Please let me know if anyone has answer for it