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Xamarin Component says "Already Installed" and its really not

Came across this error today and thought be useful a self Q / A.

Your components list does not contain a given Xamarin component, but when you got to add it you get this type of screen -

enter image description here

So, if this happens, how do I clean up the components from my system so I can install them correctly?

Solution

  • The answer is nearly in this post -

    https://kb.xamarin.com/customer/portal/articles/1865772-where-are-the-components-stored-on-my-machine

    But as well as cleaning out your

    • Local project Components folder in root
    • ~/Library/Caches/Xamarin/Components on Mac

    You also need to clear out

    • ~/Library/Caches/Xamarin/ComponentInfo

    I did not seem to need a clean up on my Windows Machine even though I was using Visual Studio, but clean the windows folders from the link above if you need to.