I am trying to debug a subtree export. I get
member-ignore-case: Wrong type argument: stringp, nil and it seems to come from `org-export-get-environment' but if I instrument that function, the error goes away whether I step thru it or `c' on entry. Likewise, if I M-x debug-on-entry and just `c' on entry, I get no error. Bisecting the file with the subtree I am trying to export, I can find things - like removing an unused src block - that when changed get rid of the error. But I'd really like to know what is going on here and not being able to see the problem thru a debugger is a frustration. Advice appreciated. Chuck
