# Broken Event due to invalid URL in flutter

**URL:** <https://community.piwik.pro/t/broken-event-due-to-invalid-url-in-flutter/4176>\
**Category:** Data collection and tags\
**Created:** [July 5, 2024, 10:41am UTC](https://community.piwik.pro/t/broken-event-due-to-invalid-url-in-flutter/4176 "2024-07-05T10:41:56Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Lin](https://avatars.discourse-cdn.com/v4/letter/l/13edae/32.png) [@Lin](https://community.piwik.pro/u/Lin)\
**Post date:** [July 5, 2024, 10:41am UTC](https://community.piwik.pro/t/broken-event-due-to-invalid-url-in-flutter/4176/1 "2024-07-05T10:41:56Z")

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Hi,  
I was trying to integrate flutter piwikpro sdk. When I sent a screen tracking event, it shows me as broken event due to invalid url.  
The url it shows in data is https:///screen/home. It seems for flutter the tracker picks app name as url which will always be an invalid url. How can I change the URL value or fix this?  
Thank you

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**Author:** ![Lin](https://avatars.discourse-cdn.com/v4/letter/l/13edae/32.png) [@Lin](https://community.piwik.pro/u/Lin)\
**Post date:** [July 19, 2024, 10:33am UTC](https://community.piwik.pro/t/broken-event-due-to-invalid-url-in-flutter/4176/3 "2024-07-19T10:33:46Z")

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Solved: The app name contained invalid chars: [Dev] App and hence was not a valid one. Removed it from the name and events were fine.

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**Author:** ![system](https://europe1.discourse-cdn.com/flex005/uploads/piwikpro/original/1X/db7013c4fd6a24443b339309db52f14995207737.png) [@system](https://community.piwik.pro/u/system)\
**Post date:** [July 21, 2024, 10:34am UTC](https://community.piwik.pro/t/broken-event-due-to-invalid-url-in-flutter/4176/4 "2024-07-21T10:34:39Z")

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