error CS0433: The type 'ValueTuple<T1, T2>' exists in both 'System.ValueTuple' and 'mscorlib'

[AMGMNPLK]

error CS0433: The type 'ValueTuple' exists in both 'System.ValueTuple' and 'mscorlib'

from barracuda-release.

[amirebrahimi]

@lulukdog - Your error is coming from a different package: com.unity.timeline. Try removing that package and see if that fixes your issue. Also, please create a new issue if you are still having a problem.

[mantasp]

Which Scripting Runtime Version do you have selected in your Player Settings in Unity Editor?

[AMGMNPLK]

I´m in the 2019.3.12f1 version:

[mantasp]

Could you please try it with Barracuda 1.2.0-preview and re-open the issue if it's still a problem?

[lulukdog]

I meet the same problem.Unity version is 2020.3.14.Platform is iOS.
Problem:Library/PackageCache/[email protected]/Editor/Animation/BindingTreeViewDataSource.cs(195,37): error CS0433: The type '(T1, T2)' exists in both 'System.ValueTuple, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' and 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'

[lulukdog]

@lulukdog - Your error is coming from a different package: com.unity.timeline. Try removing that package and see if that fixes your issue. Also, please create a new issue if you are still having a problem.

ty I resolve it by delete one of System.ValueTuple.dll