Issue while building sln file (I'm using the latest version)

[aaryan-11-x]

Error The "RGiesecke.DllExport.MSBuild.DllExportAppDomainIsolatedTask" task could not be loaded from the assembly C:\Users\vboxuser\Downloads\DueDLLigence\packages\UnmanagedExports.1.2.7\tools\RGiesecke.DllExport.MSBuild.dll. Could not load file or assembly 'Microsoft.Build.Utilities, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. DueDLLigence
Warning CS0162 Unreachable code detected DueDLLigence C:\Users\vboxuser\Downloads\DueDLLigence\DueDLLigence\DueDLLigence.cs 151 Active
Warning CS0162 Unreachable code detected DueDLLigence C:\Users\vboxuser\Downloads\DueDLLigence\DueDLLigence\DueDLLigence.cs 154 Active