If you have more than one copy of React DevTools installed and enabled (e.g. the version in the Chrome store and a locally built version) they can interfere with each other.

DevTools should detect this case and warn by showing a dialog in the DevTools UI and/or by logging to the console.

Note that we _should not warn_ if a related tool like Fast Refresh is present, only another copy of DevTools.
return;
              }
              currentPanel = panel;
              profilerPortalContainer = panel.container;
              if (profilerPortalContainer != null) {
                ensureInitialHTMLIsCleared(profilerPortalContainer);
                render('profiler');
                panel.injectStyles(cloneStyleTags);
                logEvent({event_name: 'selected-profiler-tab'});
              }
            });
          },
        );
        chrome.devtools.network.onNavigated.removeListener(checkPageForReact);
        // Re-in
        chrome.devtools.network.onNavigated.addListener(function onNavigated() {
          // Re-in
          // since 
          syncSavedPreferences();
          // It's 
          // We ca
          flushSync(() => root.unmount());
          initBridgeAndStore();
        });
      });
    },
  );
}
// Load (or reload) the DevTools extension when the user navigates to a new page.
function checkPageForReact() {