** Using WeBWorK **

The requested URL /webwork2_course_files/test_course/tmp/hardcopy/test_course.professor.Set4.pdf was not found on this server.

There is no directory /webwork2_course_files so I'm assuming that somewhere we didn't properly set the value

/local/webwork2/courses

where the courses live. If this is correct, where would this value be set? Also, where does one find the routines that generate hardcopy output?

Thanks, Tom

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/webwork2_course_files is a URL. /local/webwork2/courses is a directory. These values correspond to the variables $webwork_courses_url and $webwork_courses_dir, respectively.

The code in the apache config file webwork.apache-config reads global.conf and uses those two values to construct the following AliasMatch directive:

AliasMatch $webwork_courses_url/([^/]*)/(.*) $webwork_courses_dir/$1/html/$2

In your case, this will map a URL like:

/webwork2_course_files/test_course/tmp/hardcopy/test_course.professor.Set4.pdf

...to the file:

/local/webwork2/courses/test_course/html/tmp/hardcopy/test_course.professor.Set4.pdf

If you look in your Apache error log, you will probably see lines like:

[Tue Jul 20 18:39:44 2004] [error] [client 68.9.129.75] File does not exist: /some/crazy/path/test_course/html/tmp/hardcopy/test_course.professor.Set4.pdf

In that case, the $webwork_courses_dir variable is set to /some/crazy/path instead of to /local/webwork2/courses. Edit global.conf to fix it.

If you see different error messages, or none at all, let me know.

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The error in the Apache log is [Fri Jul 23 18:16:44 2004] [error] [client 141.150.236.91] File does not exist: /local/webwork2/courses//html/

I checked global.conf and webwork.apache-config and the variable $webwork_courses_dir looks like it is set fine.

The "//html" part of the error message above made me look at our AliasMatch command. It's almost the same as the one above but we instead of $1 and $2, we have $1 and $2 (but with no spaces). I assume it's fine.

We have webwork.apache-conf.dist v 1.2 from 7/12/04 installed.

Thanks, Tom

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My line looks like

AliasMatch $webwork_courses_url/([^/]*)/(.*) $webwork_courses_dir/\$1/html/\$2

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AliasMatch $webwork_courses_url/([^/]*)/(.*) $webwork_courses_dir/\$1/html/\$2

That's backslash-dollarsign-one and backslash-dollarsign-two. :)

And it does read as such in the shipped webwork.apache-config file.

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Thanks, Tom

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YET ANOTHER CONFIG CHANGE -- PLEASE READ.

This chagne allows command-line scripts to continue to work without
defining a bunch of environment variables. Hopefully this will be the
last change...

Now only $webwork_dir is set in webwork.apache-config. That file then
uses this value to read the course environment and get the rest of the
configuration values that it needs out of global.conf. global.conf now
has variables like $webwork_url, $pg_dir, etc. at the top.

In summary:

* In httpd.conf, include webwork.apache-config.
* In webwork.apache-config set $webwork_dir to the path to webwork2.
* In global.conf, set $webwork_url, $pg_dir, $webwork_htdocs_url,
  $webwork_htdocs_dir, $webwork_courses_url, and $webwork_courses_dir.

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Have you fixed the hardcopy problem? We now have a similiar problem when trying to generate a hard copy. The message says "page can not be found." The error_log shows the error:

[Wed Sep 22 23:44:12 2004] [error] [client 24.214.105.180] File does not exist: /usr0/opt/webwork2/courses//html/
uncaught exception in Apache::WeBWorK::handler: Course 'courses' not found: No such file or directory at /usr0/opt/webwork2/lib/WeBWorK.pm line 205.
[Wed Sep 22 23:45:02 2004] [error] [client 24.214.105.180] File does not exist: /usr0/opt/webwork2/courses//html/

The graphs in problems can not be displayed. when clicking on the graphic icon, a new page with URL: "http://lrc.alasu.edu:81/webwork2_course_files/MAT256/tmp/gif/professor-0-setUndefined_Setprob1image1.png' pops up but gives a message saying the "Page can not be found". But upon checking the directory ../courses/MAT256/html/tmp/gif/, the file IS there. The error_log reports error:

[Wed Sep 22 23:04:33 2004] [error] [client 24.214.105.180] File does not exist: /usr0/opt/webwork2/courses//html/

Like Mike said, the course name was not being picked up. But our AliasMatch line seems also fine. I can not locate where "webwork2_course_files" is defined. "webwork_files" works fine so the math equations are displayed correctly. We installed WeBWorK2.01.

I tried Zig's solution, it does not help us.

Jun

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Jun

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I'm loosing track of where things are. Can you give us a url pointing to Zig's solution?

Thanks.

--Mike

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The URL is: http://webhost.math.rochester.edu/webworkdocs/discuss/msgReader$2492

I followed Zig's comment and it solve the image and hardcopy problems. Just as I thought that our installation was finally completed, another one popped up. Yesterday morning I created a new course and after I made the change, I asked our administrator to restart the mysql. After he did that, I successfully created a ModelCourse. Then the sql won't allow me to create more courses (no such problem before). After deleting the ModelCourse, I was allowed create a course named test but was not allowed to create any more. The existing courses work perfectly, but I am no longer able to increase the number of sql courses (database creation failed). I am waiting for our administrator. I will change things back and ask him to restart the sql and see if I can add more courses. It seems now that the sql installation may have some problems, but I know nothing about it. Hopefully our administrator will be able to correct the problems.

Jun

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