title: The "GenerateDepsFile" task failed unexpectedly
body: <p>I tried to compile my new application in MonoDevelop and I got this error:</p>
  
  <blockquote>
    <p>/usr/share/dotnet/sdk/2.2.203/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.Sdk.targets(5,5): Error MSB4018: The "GenerateDepsFile" task failed unexpectedly.
        System.TypeLoadException: Could not load type of field 'Microsoft.NET.Build.Tasks.DependencyContextBuilder:_filteredPackages'
    (12) due to: Could not resolve type with token 01000027 from typeref
    (expected class 'NuGet.Packaging.Core.PackageIdentity' in assembly
    'NuGet.Packaging, Version=5.0.0.6, Culture=neutral,
    PublicKeyToken=31bf3856ad364e35') assembly:NuGet.Packaging,
    Version=5.0.0.6, Culture=neutral, PublicKeyToken=31bf3856ad364e35
    type:NuGet.Packaging.Core.PackageIdentity member:(null)
          at Microsoft.NET.Build.Tasks.TaskBase.Execute () [0x00000] in :0 
          at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute
    () [0x00029] in &lt;58f0218f988743a48dd7c84cbe933f4e>:0 
          at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask (Microsoft.Build.BackEnd.ITaskExecutionHost taskExecutionHost,
    Microsoft.Build.BackEnd.Logging.TaskLoggingContext taskLoggingContext,
    Microsoft.Build.BackEnd.TaskHost taskHost,
    Microsoft.Build.BackEnd.ItemBucket bucket,
    Microsoft.Build.BackEnd.TaskExecutionMode howToExecuteTask) [0x001f6]
    in &lt;58f0218f988743a48dd7c84cbe933f4e>:0  (MSB4018) (passcracker)</p>
  </blockquote>
  
  <p>I cannot compile any application. Please help.</p>