I have just upgraded from WW 2.17 to WW 2.18 on my local machine following the instruction given in the Upgrade Notes.
Things seems to be working fine: I can rending the problems of my existing courses. However, when I get the the Library Browser, I got
/webwork2/instructor_rpc
Unknown server communication error.
And when I click "View Problems" I got
Unexpected token '<', "
(see attached screenshot)
Any suggestion?
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Hi Glenn,
git status in /opt/webwork/webwork2 shows
Changes to be committed:
(use "git restore --staged <file>..." to unstage)
deleted: conf/localOverrides.conf.dist
deleted: conf/site.conf.dist
new file: htdocs/themes/math4/math4-coloring.css
and no problem in /opt/webwork/pg
I surely deleted those conf.dist file, because I accidentally modified them instead of the local conf files and saved them as conf (without the .dist)
What should I do then?
Thanks
Just for the referrence to anyone who may have the same problem.
The issue for me was in math4/math4-coloring.css
npm ci gives the following complains.
In themes/math4/math4-overrides.css:
expected ":".
╷
305 │ color: #FF6600; b
│ ^
╵
Replacing math4-overrides.css by the one that comes with the distro, math4-overrides.css.dist, solves my issue.
"Note that theming is no longer done with this file." that's what said in the math4-overrides.css.dist file.
So you had a syntax error in your math4-coloring.css file. When the generate-assets.js script runs (it is called when you run "npm ci") it attempts to minimize the file, and fails because of the syntax error.
The math4-coloring.css file is not used at all. There isn't even a math4-coloring.css.dist file in the distribution anymore. If you have one, then it is a remnant from previous versions of WeBWorK. You should just delete the math4-coloring.css and math4-coloring.css.dist files.
You should not be using mpm_prefork with webwork 2.18 or newer. See https://webwork.maa.org/wiki/Installation_Manual_for_2.19_on_Ubuntu#Option_2:_Serving_via_Proxy_by_Apache2 for instructions on setting up mpm_event instead.
Do you have php 8.3 enabled on your server? You don't need that for webwork2. If you aren't using it for something else, then disable it. If you are, then switch to using `php8.3-fpm`. That is better and works with mpm_event. I forget the name of the old cgi module for php8.3, but make sure to disable that.