<div dir="ltr">Hello,<div><br></div><div>I am trying to run the latest version of xcrysden for wsl, version 1.6.2. My issue is that when I try to run, it gives the following error:</div><div><br></div><blockquote style="margin:0 0 0 40px;border:none;padding:0px"><div>application-specific initialization failed: no display name and no $DISPLAY environment variable                     Error in startup script: can&#39;t read &quot;xcrys(platform)&quot;: no such variable                                                  while executing                                                                                                  &quot;if { $xcrys(platform) == &quot;windows&quot; } {                                                                                  # testing ...                                                                                                        rename exec _tcl_exec                                                                                                                                                                                                                     proc exec {args} {                                                                                                       global env                                                                                                                                                                                                                                # first try a normal exec...&quot;                                                                                    (file &quot;/home/jeremy/quantumEspresso/xcrysden-1.6.2-bin-shared/Tcl/cygwin.tcl&quot; line 19)                               invoked from within                                                                                              &quot;source $system(TOPDIR)/Tcl/cygwin.tcl&quot;                                                                                  (file &quot;/home/jeremy/quantumEspresso/xcrysden-1.6.2-bin-shared/Tcl/xcInit.tcl&quot; line 449)</div></blockquote><div><br></div><div>I see on the download page of the website it says I need to &quot;define the DISPLAY enviromental variable, i.e., export DISPLAY=:0&quot;. How do I do this? Where would I do this? I&#39;m quite lost.</div><div><br></div><div>Thank you,</div><div><br></div><div>-Jeremy Richard</div><div><br></div></div>