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Question by D3kss · Nov 11, 2019 at 02:49 PM · assets

why am i getting this error after importing a Tutorial asset package while using Unity 2019.2.0a 13 ?

Library\PackageCache\com.unity.package-manager-ui@2.0.7\Editor\AssemblyInfo.cs(7,12): error CS0246: The type or namespace name 'UxmlNamespacePrefixAttribute' could not be found (are you missing a using directive or an assembly reference?)

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Answer by Kolichikov · Feb 04, 2020 at 06:40 PM

For whatever reason the package-manager-ui package is busted. You can get around t$$anonymous$$s by uninstalling the package.

  1. go to Window-> Package Manager

  2. Find the Package Manager UI package, and click remove.

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Answer by deltameta · Dec 29, 2020 at 01:14 AM

I was able to resolve the error by going to Package Manager > Select Unity Registry > Search: "Package Manager UI" > Update to 2.2.0

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Answer by aggaton · Aug 01, 2021 at 06:20 PM

Looks like I might have the same issue. My package Manager UI level is 2.0.8, however when I select the Package Manager UI there is no option to upgrade it.

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