Issue #3121847 by alexpott, joegraduate, greg.1.anderson, mmjvb: Composer project templates do not support drupal-custom-profile installer package type

composer/Plugin/Scaffold/README.md

@@ -382,7 +382,7 @@ Sample composer.json for a project that relies on packages that use composer-sca
   "name": "my/project",
   "require": {
     "drupal/core-composer-scaffold": "*",
-    "composer/installers": "^1.2",
+    "composer/installers": "^1.9",
     "cweagans/composer-patches": "^1.6.5",
     "drupal/core": "^8.8.x-dev",
     "service-provider/d8-scaffold-files": "^1"

composer/Template/LegacyProject/composer.json

@@ -46,6 +46,7 @@
             "themes/contrib/{$name}": ["type:drupal-theme"],
             "drush/Commands/contrib/{$name}": ["type:drupal-drush"],
             "modules/custom/{$name}": ["type:drupal-custom-module"],
+            "profiles/custom/{$name}": ["type:drupal-custom-profile"],
             "themes/custom/{$name}": ["type:drupal-custom-theme"]
         },
         "drupal-core-project-message": {

composer/Template/RecommendedProject/composer.json

@@ -45,6 +45,7 @@
             "web/themes/contrib/{$name}": ["type:drupal-theme"],
             "drush/Commands/contrib/{$name}": ["type:drupal-drush"],
             "web/modules/custom/{$name}": ["type:drupal-custom-module"],
+            "web/profiles/custom/{$name}": ["type:drupal-custom-profile"],
             "web/themes/custom/{$name}": ["type:drupal-custom-theme"]
         },
         "drupal-core-project-message": {