Module development and code questions

I want to change the date format of the fullcalendar. the default date was the drupal default date. I tried to change date format of "start date" field in view  to (F j,Y | H:i) but the popup in calendar still show the default date format.

I've created several custom modules in D8 but this one is busting me. At first I thought it was because I was invoking a path of '/admin/structure/site_mgr' and created a RouteSubscriber to ensure it was added to the collection. To troubleshoot this further, I changed the path to 'foo/site_mgr', and tried combinations of adding '_admin_route: TRUE', destroying my reference to my RouteSubscriber, destroying my RouteSubscriber just to eliminate possible variables, running cache rebuild at each step. I verified my YAML passes linting.

Hi all,

I am new to drupal.  I created a module called project_1 and using this module I get data from users and push them to the database table called "project_1_table".  Then I created the project_2 module.  In this module, I created a class that extends to the formBase.  Here I tried to get the data from "project_1_table" in the submitForm method.  But the data is not available.  I want to push that data to "project_2_table".  Please help me...  

Hello,

I recently disabled the database logging module on my site and I'm using the default error.log file provided by Apache. However I'm experiencing an issue where my error logs are being truncated. So for example, when I get an error message with database logging turned on, it appears as such:

Hello everybody. I try to install geocoder module upload KML files. However, when comes the moment to set up the geocoder_provider, I go to the /admin/config/system/geocoder/geocoder-provider. But here I get the following error:

Hello.