Which build is need testing on windows devices ,Windows phone 8.1 silverlight or windows phone 8?

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what is the difference between them?

Hi,

Please use Windows Phone 8.1 ARM file if you want to run the app in Windows devices.

If we build the app for Windows Phone 8.x then it will generate the below two binaries in build\winphone8 folder.

<<path>>\<<workspace>>\temp\<<app name>>\build\winphone8

WindowsPhone81_ARM.xap

WindowsPhone81.xap

Please use WindowsPhone81_ARM.xap if you want to test the app on Windows devices.

For Simulators WindowsPhone81.xap is sufficient.

Hope this answers your question.

Thanks.