In our WW courses, it seems that some students and professors can view the pdfs of assignments, and others can't.
The error message they get is like the one below.
Would anyone know what might be causing this? One student said they she had tried different browsers and computers to no avail.
An error occured while processing your request. For help, please send mail to this site's webmaster (root@localhost), including all of the following information as well as what what you were doing when the error occured.
Wed Sep 18 22:17:20 2013
Can't call method "hide_work" on an undefined value at /opt/webwork/webwork2/lib/WeBWorK/ContentGenerator/Hardcopy.pm line 216.