c# - Error using Windows Phone 8.1 mmppf - getting parse exception when trying to navigate to page -


i'm getting weird exception when trying navigate page in windows phone 8.1 application (universal)

a first chance exception of type 'windows.ui.xaml.markup.xamlparseexception' occurred in myapplcation.exe winrt information: cannot create instance of type '%0' [line: 25 position: 44]

it says:

the text associated error code not found.

i have code in mainpage.xaml.cs navigates page called details:

 private void button_click(object sender, routedeventargs e)         {             frame.navigate(typeof(details));         }

details has little code:

<page     x:class="myapplcation.views.details"     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     xmlns:local="using:myapplcationviews"     xmlns:d="http://schemas.microsoft.com/expression/blend/2008"     xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"     xmlns:mmppf="using:microsoft.playerframework"     mc:ignorable="d"     background="{themeresource applicationpagebackgroundthemebrush}">     <page.resources>      </page.resources>     <grid>         <rectangle fill="#ff152853" horizontalalignment="left" height="260" verticalalignment="top" width="491" name="videoback"/>          <image x:name="preview_image" horizontalalignment="left" height="260" margin="0,10,0,0" verticalalignment="top" width="56" stretch="uniformtofill"/>         <border x:name="layoverborder" cornerradius="50" borderbrush="transparent" borderthickness="2" margin="196,63,196,689" background="#fffefefe" opacity="1"  >             <image x:name="layoverimage" horizontalalignment="left" height="51.671" margin="20,14.674,0,0" verticalalignment="top" width="56.372" source="ms-appx:///assets/triangle-64 (2).png" stretch="none" rendertransformorigin="0.5,0.5" uselayoutrounding="false" d:layoutrounding="auto">                 <image.rendertransform>                     <compositetransform rotation="90.899"/>                 </image.rendertransform>             </image>         </border>         <mmppf:mediaplayer x:name="player" source="{binding video}" margin="0,0,0,587"/>     </grid> </page>

when remove <mmppf:mediaplayer... line page navigation works correctly.

i have no clue start since exception thrown vague.


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