I can't quite figure out how to use the profiling build. I aliased `react-dom` to `react-dom/profiling` but I get this error:

<img width="448" alt="screen shot 2018-09-08 at 20 17 02" src="https://user-images.githubusercontent.com/810438/45257816-2d405780-b3a4-11e8-9615-0b27abd0442b.png">
<img width="272" alt="screen shot 2018-09-08 at 20 17 06" src="https://user-images.githubusercontent.com/810438/45257817-2d405780-b3a4-11e8-8a08-f5a0650debfe.png">

I didn't want interactions, I just want profiling. What am I doing wrong?

To repro, use CRA, then eject, then add `react-dom` -> `react-dom/profiling` to alias in webpack prod config and build.
throwException,
  unwindWork,
  unwindInterruptedWork,
  createRootErrorUpdate,
  createClassErrorUpdate,
} from './ReactFiberUnwindWork';
import {
  commitBeforeMutationLifeCycles,
  commitResetTextContent,
  commitPlacement,
  commitDeletion,
  commitWork,
  commitLifeCycles,
  commitAttachRef,
  commitDetachRef,
} from './ReactFiberCommitWork';
import {Dispatcher} from './ReactFiberDispatcher';
export type Deadline = {
  timeRemaining: () => number,
  didTimeout: boolean,
};
export type Thenable = {
  then(resolve: () => mixed, reject?: () => mixed): mixed,
};
const {ReactCurrentOwner} = ReactSharedInternals;
let didWarnAboutStateTransition;
let didWarnSetStateChildContext;
let warnAboutUpdateOnUnmounted;
let warnAboutInvalidUpdates;
if (__DEV__) {