Unable to install ... already exist in active configuration On Drupal 8.1 I keep running in those kind of messages when I try to activate a custom module or a custom feature that makes some modification to the basic page. (add fields). 

It is really annoying...

Steps:


Clear database entirely
go to /install.php and choose Standard profile
Now that the site is running go to Extend
Select Feature - Basic page


Result:

Unable to install Feature - Basic Page, core.base_field_override.node.page.promote, core.entity_form_display.node.page.default, core.entity_view_display.node.page.default, core.entity_view_display.node.page.teaser, field.field.node.page.body, node.type.page already exist in active configuration.

Well yeah... that is what I want to do: Change those default settings!

Expexted:

Be able to install my feature that makes some modifications to the basic page.

My Feature

Here is my Feature create with the Features module

It basically adds two fields, banner_image and background_image to the basic page

Files:

config
    install
        core.base_field_override.node.page.changed.yml
        core.base_field_override.node.page.created.yml
        core.base_field_override.node.page.promote.yml
        core.base_field_override.node.page.status.yml
        core.base_field_override.node.page.sticky.yml
        core.base_field_override.node.page.title.yml
        core.base_field_override.node.page.uid.yml
        core.entity_form_display.node.page.default.yml
        core.entity_view_display.node.page.default.yml
        core.entity_view_display.node.page.teaser.yml
        field.field.node.page.body.yml
        field.field.node.page.field_banner_image.yml
        field.field.node.page.field_image.yml
        field.storage.node.field_banner_image.yml
        language.content_settings.node.page.yml
        node.type.page.yml
feature_basic_page.features.yml
feature_basic_page.info.yml


Why this simple thing is not supported? Is it a bug? What should I do to be able to use my feature?
With Drush, you can run drush config-delete module_name.settings to delete the configuration causing the error.