Undefined property:date_sql_handler::$placeholders in date_views_plugin_pager->query() (line 161 of date_views_plugin_pager.inc)

I'm receiving the same error. I also notice the years are incorrectly showing up on the calendar. They all read '0000' instead of 2011, 2012, etc. I wonder if this has anything to do with the error.

Start by getting on the latest dev versions of everything, including Calendar. Then clear your caches, edit your views, and make sure you don't have any errors indicating missing or invalid components. Fix any problems and re-save your view even if you don't make any changes.

If you still have problems after that I need more information on how to reproduce the problem.

Drupal core 7.10
Calendar 7.x-3.x-dev
Date 7.x-2.0-rc1+55-dev

Advanced help 7.x-1.0
Chaos tool suite (ctools) 7.x-1.0-rc1
Contact Forms 7.x-1.2
Data 7.x-1.0-alpha1
Email Field 7.x-1.0
Feeds 7.x-2.0-alpha4
IMCE 7.x-1.5
Job Scheduler 7.x-2.0-alpha2
Link 7.x-1.0
Megamenu 7.x-1.x-dev
Menu block 7.x-2.2
Schema 7.x-1.0-beta3
Views 7.x-3.0

I am having the same issue along with another, seemingly unrelated error message with the calendar module:

Notice: Undefined index: field_data_field_event_date.field_event_date_value in calendar_plugin_row->pre_render() (line 272 of E:\webs\pueblolibrary.org\htdocs\sites\all\modules\calendar\includes\calendar_plugin_row.inc).

I also have the latest dev versions of Date & Calendar. Both errors show up on any page that uses any calendar view.

HI All

I also received the following string:

Undefined property: date_sql_handler::$placeholders in date_views_plugin_pager->query()

After i did a google search i saw that most Drupal sites that through out the same string.

Please help to fix this.

Regards

Js

I cannot reproduce this error. See if you get the same error on a fresh site that has nothing but Date installed (using the very latest dev version of the code). If you can get it on a fresh installation, I need steps to reproduce. If you can't, there is something else going on here -- some other module involved or something different about your setup and we have to figure out what that is. Unless I can reproduce the error myself there is nothing I can do about it.

From http://drupal.org/node/1238568 - once I set the default date in the contextual filters for all the views, the error went away. Don't forget to clear ALL your caches - memcache & views cache, too.

Nobody gave me steps to reproduce.