When a student clicks the link to export a glossary entry to portfolio, Moodle serves a blank page. The server log records the following fatal exception:

PHP Fatal error: Class 'file_info' not found in /home/tim/webs/moodle/mod/glossary/locallib.php on line 458, referer: http://localhost/moodle/mod/glossary/view.php?id=6

To Recreate:
This test requires the following:

Portfolios and the file download and Google Docs portfolio plugins to be enabled for the site
A glossary activity containing entries from at least two students
A Google Docs account for use in testing

1. Login as a student, and access the glossary activity.
2. Try exporting an entry made by you, selecting file download as the portfolio.

Expected result:

• The student can export the Glossary entry.

Actual result:

• Fatal exception is thrown.