fix(angular): do not add target defaults for the ng-packagr-lite executor when generating non-buildable library (#21935)

packages/angular/src/generators/library/lib/add-project.ts

@@ -8,11 +8,6 @@ export function addProject(
   tree: Tree,
   libraryOptions: NormalizedSchema['libraryOptions']
 ) {
-  const executor = libraryOptions.publishable
-    ? '@nx/angular:package'
-    : '@nx/angular:ng-packagr-lite';
-
-  addBuildTargetDefaults(tree, executor);
   const project: AngularProjectConfiguration = {
     name: libraryOptions.name,
     root: libraryOptions.projectRoot,
@@ -20,10 +15,17 @@ export function addProject(
     prefix: libraryOptions.prefix,
     tags: libraryOptions.parsedTags,
     projectType: 'library',
-    targets: {
+    targets: {},
-      build:
+  };
-        libraryOptions.buildable || libraryOptions.publishable
+
-          ? {
+  if (libraryOptions.buildable || libraryOptions.publishable) {
+    const executor = libraryOptions.publishable
+      ? '@nx/angular:package'
+      : '@nx/angular:ng-packagr-lite';
+
+    addBuildTargetDefaults(tree, executor);
+
+    project.targets.build = {
       executor,
       outputs: ['{workspaceRoot}/dist/{projectRoot}'],
       options: {
@@ -38,10 +40,8 @@ export function addProject(
         },
       },
       defaultConfiguration: 'production',
-            }
-          : undefined,
-    },
     };
+  }
 
   addProjectConfiguration(tree, libraryOptions.name, project);
   return project;