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.
chrome.devtools.inspectedWindow.eval(
    `window.__REACT_DEVTOOLS_APPEND_COMPONENT_STACK__ = ${JSON.stringify(
      getAppendComponentStack(),
    )};
    window.__REACT_DEVTOOLS_BREAK_ON_CONSOLE_ERRORS__ = ${JSON.stringify(
      getBreakOnConsoleErrors(),
    )};
    window.__REACT_DEVTOOLS_COMPONENT_FILTERS__ = ${JSON.stringify(
      getSavedComponentFilters(),
    )};
    window.__REACT_DEVTOOLS_SHOW_INLINE_WARNINGS_AND_ERRORS__ = ${JSON.stringify(
      getShowInlineWarningsAndErrors(),
    )};
    window.__REACT_DEVTOOLS_HIDE_CONSOLE_LOGS_IN_STRICT_MODE__ = ${JSON.stringify(
      getHideConsoleLogsInStrictMode(),
    )};
    window.__REACT_DEVTOOLS_BROWSER_THEME__ = ${JSON.stringify(
      getBrowserTheme(),
    )};`,
  );
}
syncSavedPreferences();
function createPanelIfReactLoaded() {