Smarty notices in error log

[jellyMan]

Pretty much every page request in the admin area gives me ~10 duplicates of php notices

PHP message: PHP Notice:  Undefined index: mediumSize in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 53
PHP message: PHP Notice:  Trying to get property of non-object in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 53
PHP message: PHP Notice:  Undefined index: mediumSize in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 54
PHP message: PHP Notice:  Trying to get property of non-object in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 54
PHP message: PHP Notice:  Undefined index: mediumSize in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 53
PHP message: PHP Notice:  Trying to get property of non-object in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 53
PHP message: PHP Notice:  Undefined index: mediumSize in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 54
PHP message: PHP Notice:  Trying to get property of non-object in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 54
PHP message: PHP Notice:  Undefined index: mediumSize in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 53
PHP message: PHP Notice:  Trying to get property of non-object in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 53
PHP message: PHP Notice:  Undefined index: mediumSize in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 54
PHP message: PHP Notice:  Trying to get property of non-object in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 54
PHP message: PHP Notice:  Undefined index: mediumSize in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 53
PHP message: PHP Notice:  Trying to get property of non-object in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 53
PHP message: PHP Notice:  Undefined index: mediumSize in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 54
PHP message: PHP Notice:  Trying to get property of non-object in /var/www/mysite/tools/smarty/sysplugins/smarty_internal_templatebase.php(157) : eval()'d code on line 54

Can any body help me to fix this other than just turning off PHP notices

 

I've had a look in "/tools/smarty/sysplugins/smarty_internal_templatebase.php" on lines 157 & 53 and can't really see what could be causing it.

 

Edited October 13, 2016 by jellyMan (see edit history)

[rocky]

From the error messages, the variable mediumSize doesn't exist, but some code is attempting to read it. Search the TPL files in your theme and third-party modules for that variable and make sure it exists.