gulp-babel编译之后运行async报regeneratorRuntime is not

Question

网上找了很多方法，装了插件还是不行babel-plugin-transform-runtime babel-runtime.babelrc如下{    "presets": ["es2015","stage-3"],    "plugins": [[        "transform-runtime",        {          "helpers": false,          "polyfill": false,          "regenerator": true,          "moduleName": "babel-runtime"        }      ]]}这是开发依赖"devDependencies": {    "babel-core": "^6.26.3",    "babel-plugin-transform-runtime": "^6.23.0",    "babel-polyfill": "^6.26.0",    "babel-preset-es2015": "^6.24.1",    "babel-preset-latest": "^6.24.1",    "babel-preset-stage-3": "^6.24.1",    "del": "^3.0.0",    "eslint": "^4.11.0",    "express": "^4.16.2",    "gulp": "^3.9.1",    "gulp-autoprefixer": "^4.0.0",    "gulp-awaitable-tasks": "^1.0.0",    "gulp-babel": "^7.0.1",    "gulp-changed": "^3.2.0",    "gulp-concat": "^2.6.1",    "gulp-eslint": "^4.0.0",    "gulp-if": "^2.0.2",    "gulp-less": "^3.3.2",    "gulp-minify-css": "^1.2.4",    "gulp-sourcemaps": "^2.6.1",    "gulp-uglify": "^3.0.0",    "gulp.spritesmith": "^6.7.0",    "http-proxy-middleware": "^0.17.4",    "opn": "^5.1.0",    "through2": "^2.0.3",    "babel-runtime": "^6.26.0"  },

Answer 1

是否有按照官方的要求安装插件：

npm install --save-dev babel-plugin-transform-runtime

npm install --save     babel-runtime

如果babel-runtime已经被放到devDependencies，那么先uninstall再install一遍。

Answer 2

babel最新版的更新为"presets": ["env"]，照着这个来吧。 

安装依赖也比较方便。

npm install babel-preset-env --save-dev

Answer 3

补一下package.json里的代码