# Problem in Flutter (Web Usage)

**URL:** <https://community.piwik.pro/t/problem-in-flutter-web-usage/4999>\
**Category:** API & integrations\
**Created:** [March 14, 2025, 1:11pm UTC](https://community.piwik.pro/t/problem-in-flutter-web-usage/4999 "2025-03-14T13:11:24Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![crewser](https://avatars.discourse-cdn.com/v4/letter/c/b2d939/32.png) [@crewser](https://community.piwik.pro/u/crewser)\
**Post date:** [March 14, 2025, 1:11pm UTC](https://community.piwik.pro/t/problem-in-flutter-web-usage/4999/1 "2025-03-14T13:11:25Z")

</div>

We’re using Piwik Pro in our Flutter App which we’re also using as Web App.  
However, after integration all we get is an error:

DartError: MissingPluginException(No implementation found for method configure\_Tracker on channel piwik\_flutter)

We need quick info and help.

This is the code we use:  
class MyApp extends StatefulWidget {  
const MyApp({super.key});

@override  
State createState() =\> \_MyAppState();  
}

class \_MyAppState extends State {

@override  
void initState() {  
FlutterPiwikPro.sharedInstance.configureTracker(baseURL: ‘[https://crewser.containers.piwik.pro](https://crewser.containers.piwik.pro)’, siteId: ‘—’).then((value) {  
log(‘PiwikPro configured’);  
});  
super.initState();  
}

@override  
Widget build(BuildContext context) {  
ResponsiveConfig.init(context);  
return MaterialApp(  
title: ‘Crewser App’,  
navigatorKey: navigatorKey,  
debugShowCheckedModeBanner: false,  
scaffoldMessengerKey: scaffoldMessengerKey,  
onGenerateRoute: AppGenerateRoute.generateRoute,  
theme: AppTheme.lightTheme,  
);  
}  
}

Thanks a lot!!  
We took out the site ID in the code. Of course that’s in it in our code.

---

<div class="post-metadata">

**Author:** ![kamilb](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/kamilb/32/309_2.png) [@kamilb](https://community.piwik.pro/u/kamilb)\
**Post date:** [March 21, 2025, 1:03pm UTC](https://community.piwik.pro/t/problem-in-flutter-web-usage/4999/2 "2025-03-21T13:03:28Z")

</div>

Hi @crewser,

Just to make sure, the issue is only with the web version of the app?

Have a great day! 🙂

---

<div class="post-metadata">

**Author:** ![crewser](https://avatars.discourse-cdn.com/v4/letter/c/b2d939/32.png) [@crewser](https://community.piwik.pro/u/crewser)\
**Post date:** [March 21, 2025, 3:08pm UTC](https://community.piwik.pro/t/problem-in-flutter-web-usage/4999/3 "2025-03-21T15:08:43Z")

</div>

> [@kamilb](#):
>
> Just to make sure, the issue is only with the web version of the app?

Yess. The issue is only in web. Thanks

---

<div class="post-metadata">

**Author:** ![kamilb](https://dub1.discourse-cdn.com/flex005/user_avatar/community.piwik.pro/kamilb/32/309_2.png) [@kamilb](https://community.piwik.pro/u/kamilb)\
**Post date:** [March 21, 2025, 3:20pm UTC](https://community.piwik.pro/t/problem-in-flutter-web-usage/4999/4 "2025-03-21T15:20:04Z")

</div>

Hi @crewser,

The library was developed with mobile apps in mind, it was never tested on the web.