System.AggregateException: Project system data flow 'UpToDateCheckImplicitConfiguredInputDataSource: 3378235' closed because of an exception.
CopyToOutputDirectory should be Always or PreserveNewest, not IfDifferent
---> (Inner Exception #0) Microsoft.Assumes+InternalErrorException: CopyToOutputDirectory should be Always or PreserveNewest, not IfDifferent
   at Microsoft.Assumes.Fail(String message)
   at Microsoft.VisualStudio.ProjectSystem.VS.UpToDate.CopyItem.<GetCopyType>g__ParseCopyType|15_0(String value)
   at Microsoft.VisualStudio.ProjectSystem.VS.UpToDate.CopyItem.GetCopyType(IImmutableDictionary`2 metadata)
   at Microsoft.VisualStudio.ProjectSystem.VS.UpToDate.UpToDateCheckImplicitConfiguredInput.<>c.<Update>b__76_24(KeyValuePair`2 pair)
   at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)
   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)
   at System.Collections.Immutable.ImmutableArray.CreateRange[T](IEnumerable`1 items)
   at Microsoft.VisualStudio.ProjectSystem.VS.UpToDate.UpToDateCheckImplicitConfiguredInput.<>c__DisplayClass76_0.<Update>g__UpdateCopyData|9()
   at Microsoft.VisualStudio.ProjectSystem.VS.UpToDate.UpToDateCheckImplicitConfiguredInput.Update(IProjectSubscriptionUpdate jointRuleUpdate, IProjectSubscriptionUpdate sourceItemsUpdate, IProjectItemSchema projectItemSchema, IProjectCatalogSnapshot projectCatalogSnapshot)
   at Microsoft.VisualStudio.ProjectSystem.VS.UpToDate.UpToDateCheckImplicitConfiguredInputDataSource.<>c__DisplayClass12_0.<<LinkExternalInput>g__TransformAsync|0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ProjectSystem.TransformBlockSlim`2.TransformBlockSlimAsync.<ProcessInputAsync>d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at Microsoft.VisualStudio.ProjectSystem.DataReceivingBlockSlim`1.<ProcessInputQueueAsync>d__5.MoveNext()