Getting this error while uploading Addin for debugging from VS2015 "App package does not support culture en-us specified for installation"

What is the problem it was working fine before may 2017.

  • You must ensure that the when you want to install, that the language options match the specified supported language within the SharePoint store – TARUN May 12 '17 at 7:00

Appmenifest file had wrong CultureName="xx", change it to

<SupportedLocale CultureName="xx-XX" />

or remove the SupportedLocale block

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