AUX_FIT basis set is not defined

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Sergio Correal Lopez

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Sep 23, 2025, 3:56:40 PM (2 days ago) Sep 23
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Dear all,

I am trying to compute the O K-edge XAS spectra of a system using the XAS_TDP GW2X method with ADMM. However, I get the error:

AUX_FIT basis set is not defined

I have checked that the requested auxiliary basis sets (e.g., FIT3, aug-admm-2) are present in my BASIS_ADMM file for every atomic kind. I also tried using AUX_FIT_BASIS_SET instead of AUX_FIT, but the error persists.

I have attached the relevant input files. Could someone kindly advise on how to correctly set the auxiliary basis for this calculation?

Best regards,
Sergio

Au_111_2h3o_so4.in
Au_111_2h3o_so4.xyz
Au_111_2h3o_so4.out
BASIS_SETS
BASIS_ADMM

Konstantin Tokarev

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Sep 23, 2025, 4:46:17 PM (2 days ago) Sep 23
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I guess this error refers to "BASIS_SET AUX_FIT" not being set for Au in the input file.
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