<div dir="ltr">Dear Prof Blaha,<div><br></div><div> Thank you very much for your reply and debugging the problem in this case. As you rightly suggested, I made the changes in the files sph-UPcor.frc and mmatcv.f. And compiled the whole package with an extra "-C" tag. It showed there were a problem in creating the "opticc" file. Finally I downloaded the package and installed the whole package again. And this time it did not give any error while compiling. I ran "x optic -c -so -up" without any error with a XMCD option, and case.symm1up and case.symm2up files were generated successfully.</div>
<div style> So, I thank you for your kind help and also wanted to ask, how is it possible to understand at which line of the source code there is a problem while running the "x optic" or similar commands.</div>
<div style> </div><div><br></div><div>With kind regards,<br><div><font color="#009900" face="georgia, serif">Prasenjit Roy</font><div><font color="#009900" face="georgia, serif">Electronic Structures of Materials</font></div>
<div><font color="#009900" face="georgia, serif">Radboud University</font></div><div><font color="#009900" face="georgia, serif">Nijmegen</font></div><div><font face="georgia, serif"><span style="font-size:12px;background-color:rgb(255,255,255)"><font color="#ff0000">+</font><font color="#009900">31 (0) 24 36 </font></span><span style="color:rgb(0,153,0);background-color:rgb(255,255,255);font-size:12px">52805</span></font></div>
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