fix: use dynamic import to prevent error on ng add

schematics/migrations/2_0_0/index.ts

@@ -1,6 +1,5 @@
 import {Rule, SchematicContext, SchematicsException, Tree} from '@angular-devkit/schematics';
 import {updateWorkspace} from '@schematics/angular/utility/workspace';
-import {VERSION} from '@angular/core';
 
 function updateNpmScript(tree: Tree, logger: SchematicContext['logger']) {
     const pkgPath = '/package.json';
@@ -24,7 +23,8 @@ function updateNpmScript(tree: Tree, logger: SchematicContext['logger']) {
 export default function (): Rule {
     return (tree: Tree, context: SchematicContext) => {
         updateNpmScript(tree, context.logger);
-        return updateWorkspace((workspace) => {
+        return updateWorkspace(async (workspace) => {
+            const {VERSION} = await import('@angular/core');
             workspace.projects.forEach((project, projectName) => {
                 const i18nMergeTarget = project.targets.get('extract-i18n-merge');
                 if (i18nMergeTarget) {

schematics/ng-add/index.ts

@@ -4,7 +4,6 @@ import {Schema} from './schema';
 import {JsonArray, JsonObject, normalize, Path, relative} from '@angular-devkit/core';
 
 import {Options} from '../../src/options';
-import {VERSION} from '@angular/core';
 
 function getTargetFiles(i18nExtension: JsonObject | undefined): string[] {
     const locales = i18nExtension?.locales ? (Object.values(i18nExtension?.locales) as JsonArray | string[] | undefined) : undefined;
@@ -58,7 +57,7 @@ function getOutFileRelativeToOutputPath(outFile: string, outputPathFromExtractI1
 // noinspection JSUnusedGlobalSymbols
 export function ngAdd(_options: Schema): Rule {
     return (tree: Tree, context: SchematicContext) => {
-        return updateWorkspace((workspace) => {
+        return updateWorkspace(async (workspace) => {
             const projectName = _options.project || Array.from(workspace.projects.keys())[0];
             const projectWorkspace = workspace.projects.get(projectName)!;
             if (!projectWorkspace) {
@@ -94,6 +93,7 @@ export function ngAdd(_options: Schema): Rule {
             const filesWithoutOutputPath = files?.map(f => relative(`/${outputPath}` as Path, `/${f}` as Path));
 
             const target = projectWorkspace.targets.get('extract-i18n');
+            const {VERSION} = await import('@angular/core');
             const angularMajorVersion = parseInt(VERSION.major);
             const buildTargetAttribute = angularMajorVersion >= 17 ? 'buildTarget' : 'browserTarget';
             const builderOptions: Partial<Options> = {

src/builder.ts

@@ -8,7 +8,6 @@ import {TranslationFile, TranslationUnit} from './model/translationFileModels';
 import {Merger} from './merger';
 import {Options} from './options';
 import {doCollapseWhitespace} from './stringUtils';
-import {VERSION} from '@angular/core';
 
 
 const STATE_INITIAL_XLF_2_0 = 'initial';
@@ -107,6 +106,7 @@ async function extractI18nMergeBuilder(options: Options, context: BuilderContext
     const sourcePath = join(normalize(outputPath), options.sourceFile ?? 'messages.xlf');
     const translationSourceFileOriginal = fromXlf(await readFileIfExists(sourcePath));
 
+    const {VERSION} = await import('@angular/core');
     const angularMajorVersion = parseInt(VERSION.major);
     const buildTargetAttribute = angularMajorVersion >= 17 ? 'buildTarget' : 'browserTarget';
     const extractI18nRun = await context.scheduleBuilder(options.builderI18n ?? '@angular-devkit/build-angular:extract-i18n', {