no more build errors, still issues with the selectors not returning anything

src/app/app.metareducers.ts

@@ -0,0 +1,37 @@
+import { isNotEmpty } from './shared/empty.util';
+import { StoreActionTypes } from './store.actions';
+
+// crude temporary ngrx debugger for use until
+// https://github.com/ngrx/platform/issues/97 is fixed
+let actionCounter = 0;
+
+export function debugMetaReducer(reducer) {
+  return (state, action) => {
+    if (isNotEmpty(console.debug)) {
+      actionCounter++;
+      console.debug('@ngrx action', actionCounter, action.type);
+      console.debug('state', state);
+      console.debug('action', action);
+      console.debug('------------------------------------');
+    }
+
+    return reducer(state, action);
+  }
+}
+
+export function universalMetaReducer(reducer) {
+  return (state, action) => {
+    switch (action.type) {
+      case StoreActionTypes.REHYDRATE:
+        state = Object.assign({}, state, action.payload);
+        break;
+      case StoreActionTypes.REPLAY:
+        break;
+      default:
+
+        return reducer(state, action);
+    }
+  }
+}
+
+export const appMetaReducers = [debugMetaReducer, universalMetaReducer];