winrt xaml - COMException visual studio designer -


i'm working on project make custom control works on both windows 8.1 , windows phone 8.1. after finished coding custom control inside pcl project, added universal app project. after adding i'm facing strange error (at least me), need with. error , stacktrace is:-

comexception:error hresult e-fail has been returned call com component. @ system.runtime.interopservices.windowsruntime.ivector`1.insertat(uint32 index, t value) @ system.runtime.interopservices.windowsruntime.vectortolistadapter.insertathelper[t](ivector`1 _this, uint32 index, t item) @ system.runtime.interopservices.windowsruntime.vectortolistadapter.insert[t](int32 index, t item)

the error appears everytime start solution , opening mainpage.xaml either windows 8.1 or windows phone 8.1. both xamls have code below inside

<grid>     <customweekview:customweekview x:name="weekview"></customweekview:customweekview> </grid>

all projects runs without problem during debug. there 1 way rid of error, non permanent, removing customweekview , re-add it. mean non permanent error re-appear if close , re-open solution.

anyone have idea why happening? or how investigate further?


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