reactjs - react.js 谷歌分析不起作用。没有显示实时数据

Question

react.js 谷歌分析不起作用。没有显示实时数据。我也在使用firebase数据库需要一些帮助

import ReactGA from 'react-ga';

function App() {
  useEffect(() => {
    ReactGA.initialize('G-6R4D4957DM');
     // To Report Page View 
    ReactGA.pageview(window.location.pathname + window.location.search);
  }, [])
    
  useEffect(() => {
    console.log(window.location.pathname)
  }) 

  return (
    <> 
      <ThemeProvider theme={Theme}>
        <Navbar/>
        <Switch>
          {/* <Route exact path="/" component={Home}/> */}
          <Route exact path="/" component={Properties} className="Properties"/>
          <Route exact path="/sinnerthedog2Login/" component={Adminindex} />
          <Route exact path="/sinnerthedog2/" component={AdminPannel} className="Properties"/>
          <Route exact path="/:slug" component={Singlepage}/>
          {/* <Route exact path="/sinnerthedog2/" component={AdminPannel}/> */}
          <Route component={Error}/>
        </Switch>
      </ThemeProvider>
    </>
  );
}
    
export default App;