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.
root.finishedWork = finishedWork;
        }
      }
    }
  }
  isRendering = false;
}
function completeRoot(
  root: FiberRoot,
  finishedWork: Fiber,
  expirationTime: ExpirationTime,
): void {
  
  const firstBatch = root.firstBatch;
  if (firstBatch !== null && firstBatch._expirationTime <= expirationTime) {
    if (completedBatches === null) {
      completedBatches = [firstBatch];
    } else {
      completedBatches.push(firstBatch);
    }
    if (firstBatch._defer) {
      
      
      root.finishedWork = finishedWork;
      root.expirationTime = NoWork;
      return;
    }
  }