* Use of uninitialized value in numeric eq (==) at /usr/local/webwork/system/lib//Global.pm line 821.
-------- Global::log_info called at /usr/local/webwork/system/cgi/cgi-scripts/processProblem8.pl line 158
is caused by not having $logAccessData defined A(you can set it to zero).
It's usual definition (around line 179) is
# The access log is stored in the logs/ directory under the system directory
# in a file called "access_log". It contains information about virtually
# every action committed by users, including all answers submitted.
# Usually this information is unneccessary, and the file becomes
# large very quickly, so this log is ordinarily turned off. However, the
# information it contains might be useful if, for example, a student wants an
# extension and claims not to have viewed the correct answers. Set to 1 to
# enable the access log; set to 0 to disable.
$logAccessData = 0;
You may have an old version of Global.pm, you might like to get a newer copy from the cvs (http://cvs.webwork.rochester.edu) it will be in the system/lib dircectory.
* /usr/bin/latex ecb5-prob4image.tex >>/dev/null 2>>/dev/null -- FAILED in ImageGenerator returned 256 at /usr/local/webwork/system/lib//ImageGenerator.pm line 189.
-------- ImageGenerator::render called at /usr/local/webwork/system/cgi/cgi-scripts/processProblem8.pl line 470
Your copy of ImageGenerator is a little out of date as well. (The newest versions reside at pg/lib/WeBWorK/PG/ImageGenerator.pm
instead of the address above.) However if you look at line 189
you can edit it to allow either 0 or 256 as an ok answer. (Newer versions of ImageGenerator have this done already)
You can also search on dvipng or ImageGenerator
on this page (left margin) for more discussion about getting this
working. Your last error may go away once the first two have been
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