Mahesh Gadhe

my tizen app is working fine on tizen 4 same is not working on tizen 7
when i am trying to install the app  i am getting this:
Unable to install .please try again later .if the problem persist, reinstall the application from the install web app menu or install from usb device menu and try again.
what  will be the issue for this  as I am not able to install the app on tizen os 7 

 <article>

        <div><img id="imageTag" src=""></div>
        <div><video id="videoTag" onended="onVideoEnded();" src=""></video></div>

        <!--<div id="YoutubePlayer" width="600" height="400" src="" frameborder="0" sandbox="allow-same-origin allow-scripts allow-popups allow-forms allow-top-navigation" style="z-index: 1;"></div>-->
        <div style="position:fixed; top:50%; left:50%; transform:translate(-50%, -50%); z-index:999;">
        <div id="YoutubePlayer" style="width:600px; height:400px;"></div>
    </div>

    </article>

 Hello All
I am one issue :
In menu of tizen tv  there are two options in display orienatation   onscreen  menu and source  content orientation  when i am changing the orientation for onscreen menu the content is also getting changed 
means when i changed onscreen menu  orientation to potrait  the source content orientation is also getting changed 

Hello everyone. 
I have one issue ...
I want to delete files which are not present in response API from downloader folder of tizen device I have tries using tizen.system.resolve but has it is asynchronous call but  it is not working 

As in my tizen tv I am trying to implement  youtube videos and web url should be displayed  one by one but issue is both youtube videos and web url are opening in browser and not working in iframe
Give any solution