With the new packages on the Alpha channel, it's impossible to update Xamarin 22.214.171.1245 on Visual Studio 2015.
The package is corrupted/not valid so I can't build iOS.
I use a mac and Parallels.
@tematim Looks like you've got a corrupt *.msi file there. Try clearing the cache here then trying the update again:
Xamarin Inc., as a wholly-owned Microsoft subsidiary acting as a separate legal entity, adheres to the Microsoft Privacy Statement: Privacy & cookies