Adding ngrx fails AOT build

[BrainCrumbz]

ngrx 2.x used to give another error similar to "StoreModule call not supported". Upgraded to ngrx 4.0.2 platform. Building for AOT with npm run build-prod produces:

ERROR in D:/WS/JS/ngtools/ngtools-webpack-demo/src/node_modules/@ngrx/store/store.ngfactory.ts (51,65): Argument of type '{}' is not assignable to parame
ter of type 'StoreFeature<any, any>[]'.
Property 'length' is missing in type '{}'.

[MarkDown glitch: don't know why, comment shows a double / before store.factory.ts. That is not really present in edited markdown]

[BrainCrumbz]

See this commit as a ref

[BrainCrumbz]

Same thing after upgrade to rxjs 5.4.3.

[BrainCrumbz]

Same thing after upgrade to typescript 2.4.2.

[BrainCrumbz]

Upgrade to angular 4.3.4, zone.js 0.8.16 made build time error go away.