Strongly typed combine reducers

[neuralsea]

I am new to react / redux and would appreciate the guidance of a more expert hand in helping me understand and resolve the issue below: (the general approach, how to fix and an understanding of why it has happened)

index.ts

// example requires export default (history) => combineReducers({ router: connectRouter(history), layout: layoutReducer })

export interface ApplicationState { router: RouterState, layout: LayoutState }

export default (history) => combineReducers({ router: connectRouter(history), layout: layoutReducer })

configureStore.js

... import createRootReducer from 'connected-react-router/lib/reducer';

export default function configureStore(history: History, initialState: ApplicationState) : Store { const composeEnhancers = composeWithDevTools({}); const sagaMiddleware = createSagaMiddleware();

const store = createStore( createRootReducer(history), initialState, composeEnhancers(applyMiddleware(routerMiddleware(history), sagaMiddleware)) )

sagaMiddleware.run(rootSaga);

return store;

store faults with the error tree below: X is not assignable to type 'Store<ApplicationState, AnyAction>'.

Types of property 'getState' are incompatible. Y' is not assignable to type '() => ApplicationState'.

Types of property 'router' are incompatible. Y'' is not assignable to type 'RouterState'.

Types of property 'location' are incompatible. Y''' is not assignable to type 'Location'. Types of property 'pathname' are incompatible. Y'''' is not assignable to type 'string'.

How do I resolve these errors (on reducers etc...?)

[neuralsea]

export default function configureStore(history: History, initialState: ApplicationState) : Store<ApplicationState> {