Updated the files.

my-app/node_modules/@schematics/angular/utility/dependencies.js

@@ -0,0 +1,56 @@
+"use strict";
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.getPackageJsonDependency = exports.removePackageJsonDependency = exports.addPackageJsonDependency = exports.NodeDependencyType = void 0;
+const json_file_1 = require("./json-file");
+const PKG_JSON_PATH = '/package.json';
+var NodeDependencyType;
+(function (NodeDependencyType) {
+    NodeDependencyType["Default"] = "dependencies";
+    NodeDependencyType["Dev"] = "devDependencies";
+    NodeDependencyType["Peer"] = "peerDependencies";
+    NodeDependencyType["Optional"] = "optionalDependencies";
+})(NodeDependencyType || (exports.NodeDependencyType = NodeDependencyType = {}));
+const ALL_DEPENDENCY_TYPE = [
+    NodeDependencyType.Default,
+    NodeDependencyType.Dev,
+    NodeDependencyType.Optional,
+    NodeDependencyType.Peer,
+];
+function addPackageJsonDependency(tree, dependency, pkgJsonPath = PKG_JSON_PATH) {
+    const json = new json_file_1.JSONFile(tree, pkgJsonPath);
+    const { overwrite, type, name, version } = dependency;
+    const path = [type, name];
+    if (overwrite || !json.get(path)) {
+        json.modify(path, version);
+    }
+}
+exports.addPackageJsonDependency = addPackageJsonDependency;
+function removePackageJsonDependency(tree, name, pkgJsonPath = PKG_JSON_PATH) {
+    const json = new json_file_1.JSONFile(tree, pkgJsonPath);
+    for (const depType of ALL_DEPENDENCY_TYPE) {
+        json.remove([depType, name]);
+    }
+}
+exports.removePackageJsonDependency = removePackageJsonDependency;
+function getPackageJsonDependency(tree, name, pkgJsonPath = PKG_JSON_PATH) {
+    const json = new json_file_1.JSONFile(tree, pkgJsonPath);
+    for (const depType of ALL_DEPENDENCY_TYPE) {
+        const version = json.get([depType, name]);
+        if (typeof version === 'string') {
+            return {
+                type: depType,
+                name: name,
+                version,
+            };
+        }
+    }
+    return null;
+}
+exports.getPackageJsonDependency = getPackageJsonDependency;