<div dir="ltr"><div>Dear Sir,</div><div><br></div><div> I have started to
optimize the structural parameter of SnS2 with non-local vanderwaals
functionals. However when I edit case.in0 to put XC_GGA_X_B86_R EC_LDA
VC_LDA, lapw0 error appeared with LIBXC not installed. I am using wien2k
19.1. Is it that we have to install the XC functional separately or
whether I am doing something wrong?</div><div><br></div><div>Now, I am running the structure optimization with XC_PBESOL in case.in0. Again whether am I doing something wrong?</div><div><br></div><div>with regards,<div class="gmail-yj6qo gmail-ajU"><div id="gmail-:1ep" class="gmail-ajR" tabindex="0"><img class="gmail-ajT" src="https://ssl.gstatic.com/ui/v1/icons/mail/images/cleardot.gif"></div></div></div><br clear="all"><br>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div style="font-size:small">Dr. Shamik Chakrabarti</div><div style="font-size:small">Research Fellow </div><div style="font-size:small">Department of Physics</div><div style="font-size:small">Indian Institute of Technology Patna</div><div style="font-size:small">Bihta-801103</div><div style="font-size:small">Patna</div><div style="font-size:small">Bihar, India</div></div></div></div></div></div></div></div></div>