I have a problem installing wwassignment4 in this step. I have the block called "WeBWorK Link", but when I try to edit it, I obtain this
Configuring a WeBWorK Link block
|Select WeBWorK Course
|Fatal error: Class 'soap_client' not found in /usr/share/moodle/mod/wwassignment/locallib.php on line 368
Thanks in advance!