【发布时间】：2020-10-21 00:37:03
【问题描述】：
我正在使用 Angular 的本地化 @angular/localize 并在配置它以将应用程序翻译成不同的语言后我尝试使用“ng serve”来提供它的默认版本但我收到了这个错误：
An unhandled exception occurred: The development server only supports localizing a single locale per build.
我基于此尝试使用不同的端口：How to serve different Angular locales during development using ng serve?，但无济于事。
对于翻译版本，一切工作使用“ng serve --configuration=fr”。 构建 work 在 dist/App 文件夹中正确创建“en-US”和“fr”文件夹。
当我删除 dev-server 中的 inlineLocales.size 条件时，一切正常，没有错误：
if (i18n.shouldInline && tsConfig.options.enableIvy !== false) {
//if (i18n.inlineLocales.size > 1) {
// throw new Error('The development server only supports localizing a single locale per build');
//}
await setupLocalize(i18n, browserOptions, webpackConfig);
}
所以可能是 Angular-devkit 的问题。
我尝试通过创建新的“en-US”语言环境来解决此问题，但收到此错误：
An unhandled exception occurred: An i18n locale ('en-US') cannot both be a source locale and provide a translation.
仅使用 'en' 而不是 'en-US' 并使用 <source> 和 <target> 翻译创建新的翻译文件后，它使用 'ng serve --configuration=en' 工作，但它看起来像错误的解决方案。
这是我的 angular.json：
{
"$schema": "./node_modules/@angular/cli/lib/config/schema.json",
"version": 1,
"newProjectRoot": "projects",
"projects": {
"App": {
"projectType": "application",
"i18n": {
"sourceLocale": "en-US",
"locales": {
"fr": "src/locale/messages.fr.xlf"
}
},
"schematics": {
"@schematics/angular:component": {
"style": "scss"
},
"@schematics/angular:application": {
"strict": true
}
},
"root": "",
"sourceRoot": "src",
"prefix": "app",
"architect": {
"build": {
"builder": "@angular-devkit/build-angular:browser",
"options": {
"localize": true,
"outputPath": "dist/App",
"index": "src/index.html",
"main": "src/main.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "tsconfig.app.json",
"aot": true,
"assets": ["src/favicon.ico", "src/assets"],
"styles": ["src/styles.scss"],
"scripts": []
},
"configurations": {
"production": {
"fileReplacements": [
{
"replace": "src/environments/environment.ts",
"with": "src/environments/environment.prod.ts"
}
],
"optimization": true,
"outputHashing": "all",
"sourceMap": false,
"extractCss": true,
"namedChunks": false,
"extractLicenses": true,
"vendorChunk": false,
"buildOptimizer": true,
"budgets": [
{
"type": "initial",
"maximumWarning": "500kb",
"maximumError": "1mb"
},
{
"type": "anyComponentStyle",
"maximumWarning": "2kb",
"maximumError": "4kb"
}
]
},
"fr": {
"localize": ["fr"]
}
}
},
"serve": {
"builder": "@angular-devkit/build-angular:dev-server",
"options": {
"browserTarget": "App:build"
},
"configurations": {
"production": {
"browserTarget": "App:build:production"
},
"fr": {
"browserTarget": "App:build:fr"
}
}
},
"extract-i18n": {
"builder": "@angular-devkit/build-angular:extract-i18n",
"options": {
"browserTarget": "App:build"
}
},
"test": {
"builder": "@angular-devkit/build-angular:karma",
"options": {
"main": "src/test.ts",
"polyfills": "src/polyfills.ts",
"tsConfig": "tsconfig.spec.json",
"karmaConfig": "karma.conf.js",
"assets": ["src/favicon.ico", "src/assets"],
"styles": ["src/styles.scss"],
"scripts": []
}
},
"lint": {
"builder": "@angular-devkit/build-angular:tslint",
"options": {
"tsConfig": [
"tsconfig.app.json",
"tsconfig.spec.json",
"e2e/tsconfig.json"
],
"exclude": ["**/node_modules/**"]
}
},
"e2e": {
"builder": "@angular-devkit/build-angular:protractor",
"options": {
"protractorConfig": "e2e/protractor.conf.js",
"devServerTarget": "App:serve"
},
"configurations": {
"production": {
"devServerTarget": "App:serve:production"
}
}
}
}
}
},
"defaultProject": "App"
}
如何重现：
该应用程序是使用 Angular CLI 10.0.0 和 Angular 10.0.1 生成的，然后通过 'ng add @angular/localize' 添加 @angular/localize。在 app.component.html 中是单个 <h1 i18n="@@app.h1">Hello</h1>。使用上面的 angular.json。
【问题讨论】：
标签： angular angular-i18n angular-localize