Bug 13158

Summary: Software error: Can't call method "as_string" on an undefined value at /usr/share/koha/lib/C4/Koha.pm line 1608.
Product: Koha Reporter: charis <ncubec>
Component: OPACAssignee: Owen Leonard <oleonard>
Status: RESOLVED DUPLICATE QA Contact: Testopia <testopia>
Severity: critical    
Priority: P5 - low CC: f.demians, veron
Version: 3.16   
Hardware: HP   
OS: Linux   
Change sponsored?: --- Patch complexity: ---
Documentation contact: Documentation submission:
Text to go in the release notes:
Version(s) released in:
Circulation function:
Attachments: Software error: Can't call method "as_string" on an undefined value at /usr/share/koha/lib/C4/Koha.pm line 1608. For help, please send mail to the webmaster ([no address given]), giving this error m

Description charis 2014-10-29 10:31:14 UTC
Created attachment 32886 [details]
Software error:  Can't call method "as_string" on an undefined value at /usr/share/koha/lib/C4/Koha.pm line 1608.  For help, please send mail to the webmaster ([no address given]), giving this error m

Hi all, 
Just recently after upgrading the Koha from 3.06 to 3.16.03 we have been facing problems when searching the OPAC Using certain keywords like research methods. But when I search other keywords apart from the mentioned keywords, there are no problems. Has anyone faced this kind of problem and found a solutions already? Any help would be appreciated. Thanks. 
the error messege says,
Software error: Can't call method "as_string" on an undefined value at /usr/share/koha/lib/C4/Koha.pm line 1608.
Comment 1 Marc Véron 2014-10-29 21:18:39 UTC
Hi charis

What happens if you search the catalog for the mentioned keywords (resarch methods) in staff client?

If you find biblios, what ISBN do they have?
Comment 2 Frédéric Demians 2014-11-02 16:43:30 UTC
It happens in search result containing records with invalid ISBN-13, ie ISBN-13 not beginning with 978.

*** This bug has been marked as a duplicate of bug 13167 ***