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.
}
function onFatal(root) {
  root.finishedWork = null;
}
function onComplete(
  root: FiberRoot,
  finishedWork: Fiber,
  expirationTime: ExpirationTime,
) {
  root.pendingCommitExpirationTime = expirationTime;
  root.finishedWork = finishedWork;
}
function onSuspend(
  root: FiberRoot,
  finishedWork: Fiber,
  suspendedExpirationTime: ExpirationTime,
  rootExpirationTime: ExpirationTime,
  msUntilTimeout: number,
): void {
  root.expirationTime = rootExpirationTime;
  if (enableSuspense && msUntilTimeout === 0 && !shouldYield()) {
    
    root.pendingCommitExpirationTime = suspendedExpirationTime;
    root.finishedWork = finishedWork;
  } else if (msUntilTimeout > 0) {
    
    root.timeoutHandle = scheduleTimeout(
      onTimeout.bind(null, root, finishedWork, suspendedExpirationTime),
      msUntilTimeout,
    );