## WeBWorK Main Forum

### errors with Achievement Items

by Alex Jordan -
Number of replies: 1
Some of our users are getting errors when Achievement Items are in use. The errors only appear at the bottom of the Achievements page. I haven't figured out the exact formula that makes these errors appear, but one example is pasted below. We are using the master 2.8 release. I do not seem to have this happening in my courses, which are using Achievement Items, but it is happening in other courses. Could it be that they have a different .axp to start with, and something is not coded right in some of their achievements?

## WeBWorK Warnings

WeBWorK has encountered warnings while processing your request. If this occured when viewing a problem, it was likely caused by an error or ambiguity in that problem. Otherwise, it may indicate a problem with the WeBWorK system itself. If you are a student, report these warnings to your professor to have them corrected. If you are a professor, please consult the warning output below for more information.

### Warning messages

• Use of uninitialized value in numeric gt (>) at /opt/webwork/webwork2/lib/WeBWorK/AchievementItems.pm line 538.
• Use of uninitialized value $openSetCount[22] in concatenation (.) or string at /opt/webwork/webwork2/lib/WeBWorK/AchievementItems.pm line 553. • Use of uninitialized value in numeric gt (>) at /opt/webwork/webwork2/lib/WeBWorK/AchievementItems.pm line 1153. • Use of uninitialized value$openSetCount[22] in concatenation (.) or string at /opt/webwork/webwork2/lib/WeBWorK/AchievementItems.pm line 1168.
• Use of uninitialized value in numeric gt (>) at /opt/webwork/webwork2/lib/WeBWorK/AchievementItems.pm line 647.
• Use of uninitialized value $openSetCount[22] in concatenation (.) or string at /opt/webwork/webwork2/lib/WeBWorK/AchievementItems.pm line 662. • Use of uninitialized value in numeric gt (>) at /opt/webwork/webwork2/lib/WeBWorK/AchievementItems.pm line 758. • Use of uninitialized value$openSetCount[22] in concatenation (.) or string at /opt/webwork/webwork2/lib/WeBWorK/AchievementItems.pm line 773.
• Use of uninitialized value in numeric gt (>) at /opt/webwork/webwork2/lib/WeBWorK/AchievementItems.pm line 960.
• Use of uninitialized value \$openSetCount[22] in concatenation (.) or string at /opt/webwork/webwork2/lib/WeBWorK/AchievementItems.pm line 975.

### Request information

 Time Mon Jan 13 17:37:30 2014 Method GET URI /webwork2/MTH060-10680/achievements/