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.
const next = unwindWork(workInProgress, nextRenderExpirationTime);
      
      if (workInProgress.effectTag & DidCapture) {
        
        stopFailedWorkTimer(workInProgress);
      } else {
        stopWorkTimer(workInProgress);
      }
      if (__DEV__) {
        ReactCurrentFiber.resetCurrentFiber();
      }
      if (next !== null) {
        stopWorkTimer(workInProgress);
        if (__DEV__ && ReactFiberInstrumentation.debugTool) {
          ReactFiberInstrumentation.debugTool.onCompleteWork(workInProgress);
        }
        if (enableProfilerTimer) {
          
          if (next.mode & ProfileMode) {
            let actualDuration = next.actualDuration;
            let child = next.child;
            while (child !== null) {
              actualDuration += child.actualDuration;
              child = child.sibling;
            }
            next.actualDuration = actualDuration;
          }
        }