Once you install the Calendar module and create a new Calendar you will see this error in the calendar page:

Notice : Undefined index: id dans Drupal\views\Plugin\ViewsHandlerManager->getHandler() (ligne 104 de SITE/web/core/modules/views/src/Plugin/ViewsHandlerManager.php). => Array
(
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#2 problem_with_calendar_module-2837728-2.patch835 bytesadriancid
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adriancid created an issue. See original summary.

adriancid’s picture

adriancid
Primary language Spanish
Location Montreal, Canada
CreditAttribution: adriancid as a volunteer commented
Status: Active » Needs review
FileSize
problem_with_calendar_module-2837728-2.patch835 bytes

Maybe this is not the best solution because the problem is that the index id doesn't exist, but with this patch the module Calendar will work fine. I have other views in my site and all works fine.

kittysunshine’s picture

kittysunshine
she/her
Primary language English
Location Columbus, OH
CreditAttribution: kittysunshine commented

For what it's worth, we had a similar problem with our Calendar and it ended up being a conflict with the Scheduler module. This Scheduler patch resolved our problem: https://www.drupal.org/node/2849490

adriancid’s picture

adriancid
Primary language Spanish
Location Montreal, Canada
CreditAttribution: adriancid as a volunteer commented

@kittysunshine I have too the Scheduler module in my site, I will make some test to see what happens.

othermachines’s picture

othermachines CreditAttribution: othermachines commented
Related issues: +#2764741: Module install error + Undefined index: id , +#2849490: Scheduler + Calendar module throws notice for "Undefined index: id"
cilefen’s picture

cilefen CreditAttribution: cilefen as a volunteer commented
Project: Drupal core » Calendar
Version: 8.2.4 » 8.x-1.x-dev
Component: views.module » Code
rhuffstedtler’s picture

rhuffstedtler CreditAttribution: rhuffstedtler as a volunteer and at ICF commented
Title: Problem with Calendar module » Calendar module throws undefined index: id error

Updating the title to make it easier to find for other folks in the future

jonathan1055’s picture

jonathan1055 CreditAttribution: jonathan1055 as a volunteer commented

Just for info, the Scheduler issue #2849490: Scheduler + Calendar module throws notice for "Undefined index: id" is now fixed.

Neslee Canil Pinto’s picture

Neslee Canil Pinto
he/him
Primary language English
CreditAttribution: Neslee Canil Pinto at Specbee commented
Status: Needs review » Closed (cannot reproduce)