Видео ютуба по тегу System.valuetuple Not Defined

Fix 'Predefined type System.ValueTuple is not defined' Error in .NET 4.7 Upgrade
Fix 'Predefined type System.ValueTuple is not defined' Error in .NET 4.7 Upgrade
C# :
C# : "Predefined type System.ValueTuple is not defined or imported" after upgrading to .NET 4.7
Unhandled Exception:Could not load file or assembly 'System.ValueTuple | MSTeamsSetup_c_l_.exe error
Unhandled Exception:Could not load file or assembly 'System.ValueTuple | MSTeamsSetup_c_l_.exe error
NodeJS : Could not load file or assembly 'System.ValueTuple Visual Studio 2017 15.8 node js project
NodeJS : Could not load file or assembly 'System.ValueTuple Visual Studio 2017 15.8 node js project
C# : Could not load file or assembly 'System.Web.WebPages'
C# : Could not load file or assembly 'System.Web.WebPages'
C# : Could not load file or assembly 'System.Runtime.InteropServices.RuntimeInformation
C# : Could not load file or assembly 'System.Runtime.InteropServices.RuntimeInformation
C# : System.BadImageFormatException:Could not load file or assembly … incorrect format
C# : System.BadImageFormatException:Could not load file or assembly … incorrect format
C# : Could not load file or assembly 'System.Runtime.CompilerServices.Unsafe'
C# : Could not load file or assembly 'System.Runtime.CompilerServices.Unsafe'
Could not load file or assembly system web extension
Could not load file or assembly system web extension
C# : .NET Core 3.1 - Could not load file or assembly System.Runtime, Version=4.2.2.0
C# : .NET Core 3.1 - Could not load file or assembly System.Runtime, Version=4.2.2.0
Understanding Enumerable.OfType TResult (IEnumerable) Limitations with ValueTuple in .NET
Understanding Enumerable.OfType TResult (IEnumerable) Limitations with ValueTuple in .NET
Fix : Could not load type System.IO.Directory Migration | ASP.NET Migration Error
Fix : Could not load type System.IO.Directory Migration | ASP.NET Migration Error
C# : VS 2017 Metadata file '.dll could not be found
C# : VS 2017 Metadata file '.dll could not be found
C# : 'Provide value on 'System.Windows.Baml2006.TypeConverterMarkupExtension' threw an exception.'
C# : 'Provide value on 'System.Windows.Baml2006.TypeConverterMarkupExtension' threw an exception.'
C# Nullable References
C# Nullable References
C# : Could not find a part of the path ... bin\roslyn\csc.exe
C# : Could not find a part of the path ... bin\roslyn\csc.exe
Metadata file '.Client.dll' could not be found in Blazor Webassembly (Solved) | .NET 7
Metadata file '.Client.dll' could not be found in Blazor Webassembly (Solved) | .NET 7
C#8 Nullable Reference in Practice - .NET Oxford - March 2020
C#8 Nullable Reference in Practice - .NET Oxford - March 2020