not sure if this helps...
at Raven.Client.Connection.Implementation.HttpJsonRequest.<CheckForErrorsAndReturnCachedResultIfAnyAsync>d__41.MoveNext() in C:\Projects\Temp\ravendb-3.5\Raven.Client.Lightweight\Connection\Implementation\HttpJsonRequest.cs:line 470
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
at Raven.Client.Connection.Implementation.HttpJsonRequest.<>c__DisplayClass36_0.<<SendRequestInternal>b__0>d.MoveNext() in C:\Projects\Temp\ravendb-3.5\Raven.Client.Lightweight\Connection\Implementation\HttpJsonRequest.cs:line 268
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
at Raven.Client.Connection.Implementation.HttpJsonRequest.<RunWithAuthRetry>d__38`1.MoveNext() in C:\Projects\Temp\ravendb-3.5\Raven.Client.Lightweight\Connection\Implementation\HttpJsonRequest.cs:line 318
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable.ConfiguredTaskAwaiter.GetResult()
at Raven.Client.Connection.Async.AsyncServerClient.<DirectPutIndexAsync>d__38.MoveNext() in C:\Projects\Temp\ravendb-3.5\Raven.Client.Lightweight\Connection\Async\AsyncServerClient.cs:line 327
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
at Raven.Client.Connection.ReplicationInformerBase`1.<TryOperationAsync>d__34`1.MoveNext() in C:\Projects\Temp\ravendb-3.5\Raven.Client.Lightweight\Connection\ReplicationInformerBase.cs:line 421
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
at Raven.Client.Connection.ReplicationInformerBase`1.<ExecuteWithReplicationAsync>d__33`1.MoveNext() in C:\Projects\Temp\ravendb-3.5\Raven.Client.Lightweight\Connection\ReplicationInformerBase.cs:line 316
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.ConfiguredTaskAwaitable`1.ConfiguredTaskAwaiter.GetResult()
at Raven.Client.Connection.Async.AsyncServerClient.<ExecuteWithReplication>d__164`1.MoveNext() in C:\Projects\Temp\ravendb-3.5\Raven.Client.Lightweight\Connection\Async\AsyncServerClient.cs:line 2800
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Raven.Abstractions.Util.AsyncHelpers.<>c__DisplayClass1_1`1.<<RunSync>b__0>d.MoveNext() in C:\Builds\RavenDB-Stable-3.5\Raven.Abstractions\Util\AsyncHelpers.cs:line 75
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at Raven.Abstractions.Util.AsyncHelpers.RunSync[T](Func`1 task) in C:\Builds\RavenDB-Stable-3.5\Raven.Abstractions\Util\AsyncHelpers.cs:line 89
at Raven.Client.Connection.ServerClient.PutIndex(String name, IndexDefinition definition, Boolean overwrite) in C:\Projects\Temp\ravendb-3.5\Raven.Client.Lightweight\Connection\ServerClient.cs:line 262
at Raven.Client.Indexes.AbstractIndexCreationTask.Execute(IDatabaseCommands databaseCommands, DocumentConvention documentConvention) in C:\Projects\Temp\ravendb-3.5\Raven.Client.Lightweight\Indexes\AbstractIndexCreationTask.cs:line 316
at Raven.Tests.Helpers.RavenTestBase.CreateDefaultIndexes(IDocumentStore documentStore) in C:\Projects\Temp\ravendb-3.5\Raven.Tests.Helpers\RavenTestBase.cs:line 552
at Raven.Tests.Helpers.RavenTestBase.NewDocumentStore(Boolean runInMemory, String requestedStorage, ComposablePartCatalog catalog, String dataDir, Boolean enableAuthentication, String activeBundles, Nullable`1 port, AnonymousUserAccessMode anonymousUserAccessMode, Action`1 configureStore, String databaseName, IEnumerable`1 indexes, IEnumerable`1 transformers, IEnumerable`1 seedData, Boolean noStaleQueries, DocumentConvention conventions) in C:\Projects\Temp\ravendb-3.5\Raven.Tests.Helpers\RavenTestBase.cs:line 279
at AppianMedia.XWing.Tests.UnitTests.RavenDb.RavenDb.TestBase..ctor(Boolean isEmbedded) in C:\Projects\Work\Homely\XWing\Code\Tests\AppianMedia.XWing.Tests.UnitTests.RavenDb\RavenDb\TestBase.cs:line 32
at AppianMedia.XWing.Tests.UnitTests.RavenDb.RavenDb.Locations_AutoCompleteFacts.SuggestsFacts..ctor()