Google analytic returns trackview results is (not set) in Behavior panel

[vinhnguyenambition]

I used the following configuration for the ionic 4-based application to track page views.

this.googleAnalytics.startTrackerWithId('2056xxxxx')
.then(() => {
      console.log('Google analytics is ready now');
      this.googleAnalytics.trackView('Test Page Title', window.location.href);
}).catch(e => console.log('Error starting GoogleAnalytics', e));

But the result shown in google analytic behavior overview panel is (not set).

Can everybody tell me the reason and how to solve this problem?

[kappawng]

I have the same problem :-(