Location and HashLocationStrategy stopped working

问题:

Error message

VM556 angular2-polyfills.js:349Error: Token must be defined!(…)

or

error TS2305: Module \'\"/node_modules/angular2/router\"\' has no exported member \'LocationStrategy\'.
error TS2305: Module \'\"/node_modules/angular2/router\"\' has no exported member \'HashLocationStrategy\'.
error TS2305: Module \'\"/node_modules/angular2/router\"\' has no exported member \'Location\'.

How to fix

回答1:

update >= rc.5

@NgModule({
  providers: [{ provide: LocationStrategy, useClass: HashLocationStrategy}]
})
export class AppModule {}

update >= rc.0

import {  
  PlatformLocation,  
  Location,  
  LocationStrategy,  
  HashLocationStrategy,  
  PathLocationStrategy,  
  APP_BASE_HREF}  
from \'@angular/common\';  

import {BrowserPlatformLocation} from   \'@angular/platform-browser\';

original

Change

import {ROUTER_PROVIDERS, LocationStrategy, HashLocationStrategy} from \'angular2/router\';

to

import {ROUTER_PROVIDERS} from \'angular2/router\';
import {LocationStrategy, HashLocationStrategy} from \'angular2/platform/common\';

See also
- https://github.com/angular/angular/issues/8229

Full list of moved exports:
- https://github.com/angular/angular/pull/8230/files

import {  
  PlatformLocation,  
  Location,  
  LocationStrategy,  
  HashLocationStrategy,  
  PathLocationStrategy,  
  APP_BASE_HREF}  
from \'angular2/platform/common\';  

import {BrowserPlatformLocation} from   \'angular2/src/platform/browser/location/browser_platform_location\';

Another error that\'s commonly caused by this change is

location.createComponent is not a function