VASP Forum

Hi,
I am trying to calculate the elastic tensor matrix for different phases of TaN. But I am facing this specific error for Ta4N5 phase only (it's the second time I am seeing this error), while runs for other phases are running fine. So I am wondering if this is a bug or if I am making some mistake in input files, as this is occurring only for "Ta4N5." The version of VASP I am using is 6.4.2 on Compute Canada.

I am attaching the input and error files.

Thanks

I am sorry that you are facing this issue.
This is a bug in the code and we will work on a better solution for it.
Thank you for reporting it.

In the meantime you have a few possible workarounds:

1. setting LKBLOWUP=.FALSE. in the INCAR file should fix this
2. you can deactivate symmetries with ISYM=0