Using Visual Studio 2012 I was working fine with CRM Fetch but when we changed to 365 I could no longer connect.
So tried installing 365 Authoring Extension.
On trying I get "The MSI package at the source location has a Product Code property that is not valid."
I downloaded this package from https://www.microsoft.com/en-us/download/details.aspx?id=50375
Any ideas?
Thankyou Jeremy
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