Drupal

This was an unusual problem we faced in one of our digital products.

While going to the Taxonomy Terms page and changing the url, this error popped up.

Solution

1. Check your .htaccess or WAF rules

2. If there are no rules limiting access to the taxonomy page, go to the URL Alias section
/admin/config/search/path

3. Enter the taxonomy url

/taxonomy/term/your_number

4. You will see a duplicate System path like this

/taxonomy/term/your_number /taxonomy/term/

5. Delete the entry

6. Change the URL

1. To add a migrate from csv file feature in your Drupal site, you need three modules

Migrate Source CSV 
https://www.drupal.org/project/migrate_source_csv

Migrate Plus 
https://www.drupal.org/project/migrate_plus

Migrate Tools
https://www.drupal.org/project/migrate_tools

2. Install migrate_source_csv, migrate_plus and migrate_tools using composer commands from their respective project pages like:

By enabling Charts module and Google Charts sub-module, Charts function won’t work out of the box in Drupal Views, Field or Node.

You must follow these five steps to download the relevant JavaScript files and add it to the libraries folder:

1.    Ensure that you have the `composer/installers` package installed - it is installed
"composer/installers": "^1.9",

2. Ensure you have an installer-paths for the drupal-library type in your composer.json file

Error Message: Currently using Missing or invalid module The following module is marked as installed in the core.extension configuration, but it is missing:

If you accidentally removed the module folder while the module is installed, you can remove the module/theme from the configuration file with a drush command

vendor/bin/drush config:delete core.extension module.<modulename>

In our example, the module tablefield is missing from the configuration file

In Drupal 10, you are likely to see a default feed (rss.xml) file by visiting /rss.xml. If you don’t want everyone to access the default rss feed, you can disable it by following these steps:

1. Go to Views /admin/structure/views

2. Edit the Default Front Page View
admin/structure/views/view/frontpage

3. Disable the Feeds Tab by clicking the drop down near ‘View Feed’ and click Disable Feed.

4.Click Save

1. Install Webform Mailchimp, Mailchimp and Webform modules using composer

https://www.drupal.org/project/webform

https://www.drupal.org/project/mailchimp

https://www.drupal.org/project/webform_mailchimp

2. Go to https://us1.admin.mailchimp.com/lists/

3. Add a New List https://us1.admin.mailchimp.com/lists/new-list/

4. List Name: <name of the list>

5. From Email and From Name

6. Campaign URL Settings.
Choose a verified Campaign URL Settings