In this [issue](https://github.com/facebook/react/issues/23373), when you navigate to [this app](https://next-rsc-notes.vercel.app/note/1646289027680) and inspect the sidebar in the components tab, you will get this error:

![image](https://user-images.githubusercontent.com/2735514/158241727-64eba8f9-5ac2-4aa7-bffa-ff9b3174a261.png)

 This is a user error. One of the components in the user's app thrown. However, the UI for this is confusing, because it seems like it's a DevTools error. We've gotten a lot of bug reports like this, and it would be good to differentiate between DevTools bugs and bugs in the app. For this task:

- [ ] Build the React DevTools extension locally (instructions [here](https://github.com/facebook/react/tree/main/packages/react-devtools-extensions)) and reproduce the error
- [ ] Figure out a way to have the front end be able to differentiate whether the error is a error within DevTools or within the user's app
- [ ] Design/implement a better UI to help app developers distinguish between these two cases
const {alternate} = fiber;
    if (alternate !== null) {
      if (!fiberToIDMap.has(alternate)) {
        fiberToIDMap.set(alternate, refinedID);
      }
    }
    if (__DEBUG__) {
      if (didGenerateID) {
        debug(
          'getOrGenerateFiberID()',
          fiber,
          fiber.return,
          'Generated a new UID',
        );
      }
    }
    return refinedID;
  }
   Returns an ID if one has already been generated for the Fiber or throws.
  function getFiberIDThrows(fiber: Fiber): number {
    const maybeID = getFiberIDUnsafe(fiber);
    if (maybeID !== null) {
      return maybeID;
    }
    throw Error(
      `Could not find ID for Fiber "${getDisplayNameForFiber(fiber) || ''}"`,
    );
  }
   Returns an ID if one has already been generated for the Fiber or null if one has not been generated.
   Use this method while e.g. logging to avoid over-retaining Fibers.