Issue #2813829 by Daniel Schaefer: Can't install 8.x-3.0-rc2 on D 8.2: Invalid data type in config bootstrap.settings

Author: markhalliwell

config/install/bootstrap.settings.yml

@@ -1,12 +1,17 @@
 # Default settings should not be located here. This file is only used to
-# override existing settings. If your theme is the one that introduces a new
-# theme setting, it should use the Drupal Bootstrap base theme's
-# @BootstrapSetting annotation discovery process. This ensures that sub-theme
-# settings are inherited from base themes themes properly and to determine when
-# a setting should be saved to config as "overridden".
+# initially install a theme's "settings".
+#
+# Instead, the Drupal Bootstrap base theme uses the @BootstrapSetting
+# annotated plugin discovery process. This ensures that sub-theme settings are
+# inherited from base themes themes properly and to determine when a setting
+# should be saved to config as "overridden".
 #
 # @see \Drupal\bootstrap\Plugin\SettingBase
 # @see \Drupal\bootstrap\Plugin\SettingInterface
 # @see \Drupal\bootstrap\Plugin\SettingManager
 # @see \Drupal\bootstrap\Plugin\Form\SystemThemeSettings
 # @see \Drupal\bootstrap\ThemeSettings
+
+# This file cannot be empty, so install an initial empty array for "schemas".
+# @see https://www.drupal.org/node/2813829
+schemas: []