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.
if (rootExpirationTime !== NoWork) {
      if (enableSchedulerTracking) {
        
        let prevInteractions = __interactionsRef.current;
        __interactionsRef.current = root.memoizedInteractions;
        
        
        storeInteractionsForExpirationTime(root, rootExpirationTime, false);
        requestWork(root, rootExpirationTime);
        __interactionsRef.current = prevInteractions;
      } else {
        requestWork(root, rootExpirationTime);
      }
    }
  }
}
function scheduleWorkToRoot(fiber: Fiber, expirationTime): FiberRoot | null {
  
  if (
    fiber.expirationTime === NoWork ||
    fiber.expirationTime > expirationTime
  ) {
    fiber.expirationTime = expirationTime;
  }
  let alternate = fiber.alternate;
  if (
    alternate !== null &&
    (alternate.expirationTime === NoWork ||
      alternate.expirationTime > expirationTime)
  ) {