Error in Unity 2018.1.3f1

[cristiancarli]

Hi this asset not work into unity 2018.1.3f1 it gives two error as follow.

C:/Users/utente/AppData/Local/Unity/cache/packages/packages.unity.com/[email protected]/Editor/Sources/Services/Packages/Package.cs(27,60): error CS0121: The call is ambiguous between the following methods or properties: System.Linq.LINQ.FirstOrDefault<UnityEditor.PackageManager.UI.PackageInfo>(this System.Collections.Generic.IEnumerable<UnityEditor.PackageManager.UI.PackageInfo>, System.Predicate<UnityEditor.PackageManager.UI.PackageInfo>)' and System.Linq.Enumerable.FirstOrDefault<UnityEditor.PackageManager.UI.PackageInfo>(this System.Collections.Generic.IEnumerable<UnityEditor.PackageManager.UI.PackageInfo>, System.Func<UnityEditor.PackageManager.UI.PackageInfo,bool>)'

[ghost]

@floatinghotpot Will we have a fix for this problem? If yes, when?

[ltphy]

I have one solution for this problems:
Head to file location: C:/Users/UserName/AppData/Local/Unity/cache/packages/
Delete the folder packages.unity.com
Everything will works fine.
Although every time you start the project, you need to delete it.

[AugusDogus]

Thanks @ltphy, that's working as a temp solution for me.

[sagar1garg]

@ltphy @floatinghotpot

Any permanent resolution to this problem. I am having same issue in 2018 edition.

[JonathanPalmerGD]

@ltphy 's solution did not work for me.

Using Unity 2018.1.9f1