Microsoft Partner Center
A Microsoft website for partners that provides access to product support, a partner community, and other partner services.
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I tried to upload my .appxupload file to Submission in Microsoft Store, but I got this message: Package acceptance validation error: The package file format for LoginNavigation.UWP_1.0.143.0_x86_x64_arm.appxbundle is invalid: Retrieving the COM class…