To add to that:

a) Sometimes, but not always, such errors can be resolved by updating to the latest WIEN2k version and starting from a fresh directory (with only the case.struct in it).  You didn't mention, are you using the latest WIEN2k 19.1? If not, as the WIEN2k 19.1 updates page states, Version 19.1 is a major update.  Are you also using any or all of the WIEN2k 19.1 patches from the mailing list?  A list that I have assembled is at [1].

b) General tips for resolving a ghostbands error like the one you have below should be in section "12.1 Ghost bands" of the WIEN2k usersguide (starting on page 246) [2].

c)  I could be wrong, but I thought recalled calculations on structures with Nd possibly being more challenging.  You might have a look in the mailing list archive for past posts on Nd, such as [3] and [4].

d) For some other tips that might help with the "semicore band-ranges too large, ghostband" error, refer to [5].

[1] https://github.com/gsabo/WIEN2k-Patches/tree/master/19.1
[2] http://susi.theochem.tuwien.ac.at/reg_user/textbooks/usersguide.pdf
[3] https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg18345.html [4] https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg18367.html [5] https://www.mail-archive.com/wien@zeus.theochem.tuwien.ac.at/msg10561.html

On 2/29/2020 6:44 AM, Laurence Marks wrote:
Without more information nobody can help you.

_____
Professor Laurence Marks
"Research is to see what everybody else has seen, and to think what nobody else has thought", Albert Szent-Gyorgi
www.numis.northwestern.edu <http://www.numis.northwestern.edu>

On Sat, Feb 29, 2020, 06:14 姜若诗 <ruoshiji...@sjtu.edu.cn <mailto:ruoshiji...@sjtu.edu.cn>> wrote:

    Dear experts,

    I got stuck on the problem when I do the supercell calculation of
    heavy elements Nd.

    The normal cell calculation is everything good, but it supercell
    calculation, the ghost band showed up in lapw2.

    -------------------------------error
    message---------------------------

    'LAPW2' - semicore band-ranges too large, ghostbands ?

    
-----------------------------------------------------------------------------

    Do you know how to fix it ?

    Looking forward to your reply. Thank you very much.

    Best,

    Jasmine

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