System.Runtime.CompilerServices.Unsafe

System.IO.FileNotFoundException: Could not load file or assembly 'System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
File name: 'System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'
at System.ReadOnlySpan`1..ctor(T[] array, Int32 start, Int32 length)
at SabberStoneCore.Model.Zones.Zone`1.GetSpan()
at SabberStoneCore.Model.Entities.Controller.Options(Boolean skipPrePhase)
at SabberStoneCoreGui.Nodes.OptionNode.Options(ConcurrentDictionary`2& optionNodes) in C: epositoryGitHubHearthSimSabberStoneSabberStoneGuisrcNodesOptionNode.cs:line 113
at SabberStoneGui.MainWindow.<>c__DisplayClass4_2.<worker_DoWork>b__5() in C: epositoryGitHubHearthSimSabberStoneSabberStoneGuisrcMainWindow.xaml.cs:line 82
at System.Threading.Tasks.Task.InnerInvoke()
at System.Threading.Tasks.Task.Execute()

=== Pre-bind state information ===
LOG: DisplayName = System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
(Fully-specified)
LOG: Appbase = file:///C:/repository/GitHub/HearthSim/SabberStone/SabberStoneGui/bin/Debug/
LOG: Initial PrivatePath = NULL
Calling assembly : System.Memory, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51.
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C: epositoryGitHubHearthSimSabberStoneSabberStoneGuiinDebugSabberStoneGui.exe.Config
LOG: Using host configuration file:
LOG: Using machine configuration file from C:WindowsMicrosoft.NETFrameworkv4.0.30319configmachine.config.
LOG: Post-policy reference: System.Runtime.CompilerServices.Unsafe, Version=4.0.4.1, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
LOG: Attempting download of new URL file:///C:/repository/GitHub/HearthSim/SabberStone/SabberStoneGui/bin/Debug/System.Runtime.CompilerServices.Unsafe.DLL.
LOG: Attempting download of new URL file:///C:/repository/GitHub/HearthSim/SabberStone/SabberStoneGui/bin/Debug/System.Runtime.CompilerServices.Unsafe/System.Runtime.CompilerServices.Unsafe.DLL.
LOG: Attempting download of new URL file:///C:/repository/GitHub/HearthSim/SabberStone/SabberStoneGui/bin/Debug/System.Runtime.CompilerServices.Unsafe.EXE.
LOG: Attempting download of new URL file:///C:/repository/GitHub/HearthSim/SabberStone/SabberStoneGui/bin/Debug/System.Runtime.CompilerServices.Unsafe/System.Runtime.CompilerServices.Unsafe.EXE.