<div dir="ltr">Dear Users and Developers,<br><br>I tried to use VASP with W90 to plot GW band structure, but I always got the following error:<br>Â ------------------------------------------------------------------------------<br>Â Cycle:Â Â Â Â Â 1<br>Â wann_main: ZHEEV in internal_new_u_and_m failed, info=Â Â Â Â Â Â Â Â Â Â 15<br>Â Â Â Â Â Â Â Â Â Â Â trying Schur decomposition instead<br>Â wann_main: SCHUR failed, info=Â Â Â Â Â Â Â Â Â Â 16<br>Â Exiting.......<br>Â wann_main: problem computing schur form 1<br><br><br>I tried different lapacks as Prof. Yates suggested (in the following link:<br><a href="http://mailman.qe-forge.org/pipermail/wannier/2012-May/000513.html">http://mailman.qe-forge.org/pipermail/wannier/2012-May/000513.html</a>)<br>, but I still got the same error.<br><br>Please help me fix the problem. Any comments and suggestions are welcomed.<br><br>Thanks<br>Ling-Yi<br></div>