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I've been deploying a SharePoint Add-In from Visual Studio 2015 to our O365 developer site.

For the past few days though, it has shown this deployment error:

"Skipping the uninstall step because the SharePoint Add-in is in an invalid state and cannot be uninstalled."

The Add-in is listed on the site's "Site Contents" page, but it is grayed out, and only has a "Monitor" action in it's menu. SharePoint Add-In Error

How can I remove it? Or why won't SharePoint remove it? How do I get this to allow deployment? What could I be doing that would be interfering with this deployment?

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  • First of all you need to verify that the user account that is performing this procedure is a member of the Site owners group.

If so Return to classic SharePoint link , now try click the ellipses (...) beside the application like image below then click remove:

enter image description here

  • I am the site owner and creator. And when I click "Remove" in Classic View, it says it is removing for a while, then says "Sorry we couldn't remove the app. Click to retry" And no matter how many times I retry, it never removes the app. – Z White Sep 11 '17 at 17:26
  • Ok @ZWhite i answered on the same probleme you can see it here sharepoint.stackexchange.com/a/225706/57592 – Youssef Moumen El idrissi Sep 13 '17 at 19:55

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