我在尝试运行angular2项目时遇到错误。从使用ubuntu的PC切换到MacOS X后发生。节点版本：7.7.4，npm版本：4.1.2。我正在运行npm webpack-dev-server --inline --progress --watch --port 8180，然后我收到了这些信息：
WARNING in ./~/@angular/core/src/linker/system_js_ng_module_factory_loader.js
69:15-36 Critical dependency: the request of a dependency is an expression
WARNING in ./~/@angular/core/src/linker/system_js_ng_module_factory_loader.js
85:15-102 Critical dependency: the request of a dependency is an expression
WARNING in ./~/angular2-focus/~/@angular/core/@angular/core.es5.js
5889:15-36 Critical dependency: the request of a dependency is an expression
WARNING in ./~/angular2-focus/~/@angular/core/@angular/core.es5.js
5905:15-102 Critical dependency: the request of a dependency is an expression
ERROR in [default] /Users/user/Documents/Java/WORK/mediahelper/media-helper/src/main/web/node_modules/angular2-focus/node_modules/@angular/core/src/animation/animation_metadata_wrapped.d.ts:12:32
Initializers are not allowed in ambient contexts.
[...]
ERROR in [default] /Users/user/node_modules/@types/core-js/index.d.ts:651:4
All declarations of 'prototype' must have identical modifiers.
ERROR in [default] /Users/user/node_modules/@types/core-js/index.d.ts:666:4
All declarations of 'prototype' must have identical modifiers.
ERROR in [default] /Users/user/node_modules/@types/core-js/index.d.ts:680:4
All declarations of 'prototype' must have identical modifiers.
ERROR in [default] /Users/user/node_modules/@types/core-js/index.d.ts:692:4
All declarations of 'value' must have identical modifiers.
ERROR in [default] /Users/user/node_modules/@types/core-js/index.d.ts:804:4
All declarations of 'prototype' must have identical modifiers.
答案 0 :(得分：1)
刚刚将我的宠物项目更新为@ angular4并获得了类似的警告
angular/core.es5.js 5889:15-36 Critical dependency:
the request of a dependency is an expression
更改您的webpack.conf.js
from: /angular(\|/)core(\|/)(esm(\|/)src|src)(\|/)linker/
to: /angular(\|/)core(\|/)@angular/
链接到reddit主题：https://www.reddit.com/r/Angular2/comments/6160c2/angular_400_now_available/dfci3gm/