我在Angular 2 + PrimeNG上开发项目。开始使用Git，这是在TypeScript编译中出现的问题。马上就会破坏你的package.json。
"dependencies": {
"@angular/common": "2.4.2",
"@angular/compiler": "2.4.2",
"@angular/core": "2.4.2",
"@angular/forms": "2.4.2",
"@angular/http": "2.4.2",
"@angular/platform-browser": "2.4.2",
"@angular/platform-browser-dynamic": "2.4.2",
"@angular/router": "3.4.2",
"ag-grid": "12.0.0",
"ag-grid-angular": "12.0.0",
"angular2-focus": "^1.1.0",
"core-js": "^2.4.1",
"font-awesome": "^4.6.3",
"moment": "^2.18.1",
"primeng": "^2.0.0",
"reflect-metadata": "^0.1.3",
"rxjs": "5.0.1",
"tedious": "1.14.0",
"zone.js": "^0.7.2"
},
"devDependencies": {
"@angularclass/hmr": "^1.0.1",
"@angularclass/hmr-loader": "^3.0.2",
"@types/core-js": "^0.9.0",
"@types/jasmine": "2.5.41",
"@types/lodash": "4.14.50",
"@types/node": "^6.0.38",
"@types/selenium-webdriver": "2.53.33",
"angular2-template-loader": "^0.6.0",
"autoprefixer": "^6.3.2",
"awesome-typescript-loader": "^3.0.0-beta.17",
"codelyzer": "2.0.0-beta.4",
"copy-webpack-plugin": "^4.0.0",
"css-loader": "^0.26.1",
"extract-text-webpack-plugin": "^2.0.0-beta.4",
"file-loader": "^0.9.0",
"html-loader": "^0.4.0",
"html-webpack-plugin": "^2.8.1",
"istanbul-instrumenter-loader": "^0.2.0",
"jasmine-core": "^2.3.4",
"jasmine-spec-reporter": "^2.4.0",
"json-loader": "^0.5.3",
"karma": "1.3.0",
"karma-chrome-launcher": "^2.0.0",
"karma-coverage": "^1.0.0",
"karma-jasmine": "^1.0.2",
"karma-mocha-reporter": "^2.0.3",
"karma-remap-istanbul": "0.2.1",
"karma-sourcemap-loader": "^0.3.7",
"karma-webpack": "1.8.0",
"node-sass": "^3.4.2",
"null-loader": "0.1.1",
"postcss-loader": "^1.1.0",
"protractor": "^4.0.10",
"raw-loader": "0.5.1",
"remap-istanbul": "^0.6.4",
"rimraf": "^2.5.1",
"sass-loader": "^4.0.0",
"shelljs": "^0.7.0",
"style-loader": "^0.13.0",
"ts-helpers": "^1.1.1",
"tslint": "^4.3.1",
"tslint-loader": "^3.3.0",
"typedoc": "^0.5.1",
"typescript": "2.0.10",
"url-loader": "^0.5.6",
"webpack": "2.1.0-beta.25",
"webpack-dev-server": "2.1.0-beta.9"
}
}
从安装所有npm包的项目克隆repo后，构建项目，获取一组此类错误（这里是编译日志的一个片段）。
ERROR in [at-loader] ./node_modules/@angular/router/src/utils /collection.d.ts:35:58
TS2304: Cannot find name 'Promise'.
ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:47:36
TS2304: Cannot find name 'Iterable'.
ERROR in [at-loader] ./node_modules/@types/core-js/index.d.ts:353:48
TS2304: Cannot find name 'PropertyKey'.
情况众所周知 - 没有看到es5的类型。文件tsconfig.json是这样的：
{
"compilerOptions": {
"target": "es5",
"module": "commonjs",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"sourceMap": true,
"noEmitHelpers": true,
"noUnusedLocals": true,
"noUnusedParameters": true
},
"compileOnSave": false,
"buildOnSave": false,
"awesomeTypescriptLoaderOptions": {
"forkChecker": true,
"useWebpackText": true
}
}
开始在es6模式下翻译编译器TS以解决问题，＆＃34; target＆＃34;：＆＃34; es6＆＃34;。错误日志是：
ERROR in [at-loader] ./node_modules/@types/handlebars/index.d.ts:22:77
TS2314: Generic type 'HandlebarsTemplateDelegate<T, any>' requires 2 type argument(s).
ERROR in [at-loader] ./node_modules/@types/handlebars/index.d.ts:24:34
TS2368: Type parameter name cannot be 'any'
ERROR in [at-loader] ./node_modules/@types/handlebars/index.d.ts:24:79
TS2314: Generic type 'HandlebarsTemplateDelegate<T, any>' requires 2 type argument(s).
ERROR in [at-loader] ./node_modules/@types/handlebars/index.d.ts:96:15
TS2314: Generic type 'HandlebarsTemplateDelegate<T, any>' requires 2 type argument(s).
ERROR in [at-loader] ./node_modules/@types/handlebars/index.d.ts:99:42
TS2368: Type parameter name cannot be 'any'
ERROR in [at-loader] ./node_modules/@types/handlebars/index.d.ts:104:22
TS2314: Generic type 'HandlebarsTemplateDelegate<T, any>' requires 2 type argument(s).
ERROR in [at-loader] ./node_modules/@types/handlebars/index.d.ts:115:34
TS2314: Generic type 'HandlebarsTemplateDelegate<T, any>' requires 2 type argument(s).
我觉得项目原则上不了解es6的类型。如何正确配置es6下的编译项目？
答案 0 :(得分：0)
你必须使用＆＃34; es5＆＃34;作为TypeScript编译器＆＃34; target＆＃34;对于目前的角项目，it's a baseline requirement, es6 is not wildly supported。
但像＆＃34;承诺＆＃34;等功能＆安培; ＆＃34; DOM.Iterable＆＃34; ES5不支持，因此您必须添加其他编译选项以加载这些库。解决方案是将"lib": ["es2015", "dom"]添加到＆＃34; tsconfig.json＆＃34;：
{
"compilerOptions": {
"target": "es5",
"lib": ["es2015", "dom"],
"module": "commonjs",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"sourceMap": true,
"noEmitHelpers": true,
"noUnusedLocals": true,
"noUnusedParameters": true
},
"compileOnSave": false,
"buildOnSave": false,
"awesomeTypescriptLoaderOptions": {
"forkChecker": true,
"useWebpackText": true
}
}
此选项在＆＃34; Angular 2 guide - TypeScript Configuration＆＃34;
中提及基于--target，TypeScript添加了额外的环境声明 如果目标是es6，则为Promise。
由于QuickStart的目标是es5，因此您可以覆盖列表 要包含的声明文件：
＆＃34; lib＆＃34;：[＆＃34; es2015＆＃34;，＆＃34; dom＆＃34;]
多亏了这一点，即使以es5为目标，你也拥有所有es6类型。