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.
fetchFileWithCaching = url => {
              return new Promise((resolve, reject) => {
                
                
                
                fetchFromNetworkCache(url, resolve, reject);
              });
            };
          }
          
          const hookNamesModuleLoaderFunction = () =>
            import(
               'react-devtools-shared/src/hooks/parseHookNames'
            );
          root = createRoot(document.createElement('div'));
          render = (overrideTab = mostRecentOverrideTab) => {
            mostRecentOverrideTab = overrideTab;
            root.render(
              createElement(DevTools, {
                bridge,
                browserTheme: getBrowserTheme(),
                componentsPortalContainer,
                enabledInspectedElementContextMenu: true,
                fetchFileWithCaching,
                hookNamesModuleLoaderFunction,
                overrideTab,
                profilerPortalContainer,