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
L
      source: _debugSource || null,
      rootType,
      rendererPackageName: renderer.rendererPackageName,
      rendererVersion: renderer.version,
      plugins,
    };
  }
  let mostRecentlyInspectedElement: InspectedElement | null = null;
  let hasElementUpdatedSinceLastInspected: boolean = false;
  let currentlyInspectedPaths: Object = {};
  function isMostRecentlyInspectedElement(id: number): boolean {
    return (
      mostRecentlyInspectedElement !== null &&
      mostRecentlyInspectedElement.id === id
    );
  }
  function isMostRecentlyInspectedElementCurrent(id: number): boolean {
    return (
      isMostRecentlyInspectedElement(id) && !hasElementUpdatedSinceLastInspected
    );
  }
   Track the intersection of currently inspected paths,
   so that we can send their data along if the element is re-rendered.
  function mergeInspectedPaths(path: Array<string | number>) {
    let current = currentlyInspectedPaths;
    path.forEach(key => {
      if (!current[key]) {
        current[key] = {};
      }