Import all entities from connector failed.
Import all entities from connector Google GMail Settings (Staff) Connector failed with reason One or more errors occurred.. Duration: 00:06:53.4202671
Error details:
System.AggregateException: One or more errors occurred. ---> System.AggregateException: One or more errors occurred. ---> System.InvalidOperationException: There were not enough free threads in the ThreadPool to complete the operation.
 at Google.Apis.Http.ConfigurableMessageHandler.<SendAsync>d__43.MoveNext()
--- 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 Google.Apis.Auth.OAuth2.Requests.TokenRequestExtenstions.<ExecuteAsync>d__0.MoveNext()
--- 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 Google.Apis.Auth.OAuth2.ServiceAccountCredential.<RequestAccessTokenAsync>d__20.MoveNext()
--- 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 Unify.Product.IdentityBroker.GoogleAgent.<GetServiceFactory>d__10b.MoveNext()
--- 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 Unify.Product.IdentityBroker.GoogleAgent.<GetUsersSettingsService>d__154.MoveNext()
 --- End of inner exception stack trace ---
 at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
 at Unify.Product.IdentityBroker.GoogleAgent.InnerUserSettingsGet(Boolean getLabels, Func`1 getClient, String username, Boolean getSendAs, Boolean getForwarding, Boolean getPop, Boolean getImap, Boolean getVacation, Boolean getSignature, Boolean getDelegation)
 at Unify.Product.IdentityBroker.GoogleAgent.<>c__DisplayClassb1.<UserSettingsGet>b__ae(String username)
 at System.Threading.Tasks.Parallel.<>c__DisplayClass17_0`1.<ForWorker>b__1()
 at System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask)
 at System.Threading.Tasks.Task.<>c__DisplayClass176_0.<ExecuteSelfReplicating>b__0(Object )
 --- End of inner exception stack trace ---
 at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
 at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
 at System.Threading.Tasks.Parallel.ForWorker[TLocal](Int32 fromInclusive, Int32 toExclusive, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Func`4 bodyWithLocal, Func`1 localInit, Action`1 localFinally)
 at System.Threading.Tasks.Parallel.ForEachWorker[TSource,TLocal](IEnumerable`1 source, ParallelOptions parallelOptions, Action`1 body, Action`2 bodyWithState, Action`3 bodyWithStateAndIndex, Func`4 bodyWithStateAndLocal, Func`5 bodyWithEverything, Func`1 localInit, Action`1 localFinally)
 at System.Threading.Tasks.Parallel.ForEach[TSource](IEnumerable`1 source, Action`1 body)
 at Unify.Product.IdentityBroker.GoogleAgent.<UserSettingsGet>d__b3.MoveNext()
 at System.Linq.Enumerable.<SelectManyIterator>d__16`2.MoveNext()
 at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
 at System.Linq.Enumerable.<SelectManyIterator>d__16`2.MoveNext()
 at Unify.Framework.Collections.EnumerableExtensions.<ActionOnLast>d__10`1.MoveNext()
 at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
 at Unify.Framework.Collections.ActionOnExceptionEnumerator`1.MoveNext()
 at Unify.Framework.Collections.EnumerableExtensions.<ActionOnLast>d__10`1.MoveNext()
 at Unify.Framework.Collections.EnumerableExtensions.<ProduceAutoPages>d__7`1.MoveNext()
 at Unify.Framework.Visitor.ThreadsafeVisitorEvaluator`1.Visit()
 at Unify.Framework.Visitor.VisitEvaluateOnThreadPool[T](IEnumerable`1 visitCollection, Action`2 visitor, Int32 maxThreads)
 at Unify.Product.IdentityBroker.RepositoryChangeDetectionWorkerBase.PerformChangeDetection(IEnumerable`1 connectorEntities)
 at Unify.Product.IdentityBroker.ChangeDetectionImportAllJob.ImportAllChangeProcess()
 at Unify.Product.IdentityBroker.ChangeDetectionImportAllJob.RunBase()
 at Unify.Framework.DefinedScopeJobAuditTrailJobDecorator.Run()
 at Unify.Product.IdentityBroker.ConnectorJobExecutor.<>c__DisplayClass29.<Run>b__27()
 at Unify.Framework.AsynchronousJobExecutor.PerformJobCallback(Object state)
---> (Inner Exception #0) System.AggregateException: One or more errors occurred. ---> System.InvalidOperationException: There were not enough free threads in the ThreadPool to complete the operation.
 at Google.Apis.Http.ConfigurableMessageHandler.<SendAsync>d__43.MoveNext()
--- 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 Google.Apis.Auth.OAuth2.Requests.TokenRequestExtenstions.<ExecuteAsync>d__0.MoveNext()
--- 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 Google.Apis.Auth.OAuth2.ServiceAccountCredential.<RequestAccessTokenAsync>d__20.MoveNext()
--- 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 Unify.Product.IdentityBroker.GoogleAgent.<GetServiceFactory>d__10b.MoveNext()
--- 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 Unify.Product.IdentityBroker.GoogleAgent.<GetUsersSettingsService>d__154.MoveNext()
 --- End of inner exception stack trace ---
 at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
 at Unify.Product.IdentityBroker.GoogleAgent.InnerUserSettingsGet(Boolean getLabels, Func`1 getClient, String username, Boolean getSendAs, Boolean getForwarding, Boolean getPop, Boolean getImap, Boolean getVacation, Boolean getSignature, Boolean getDelegation)
 at Unify.Product.IdentityBroker.GoogleAgent.<>c__DisplayClassb1.<UserSettingsGet>b__ae(String username)
 at System.Threading.Tasks.Parallel.<>c__DisplayClass17_0`1.<ForWorker>b__1()
 at System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask)
 at System.Threading.Tasks.Task.<>c__DisplayClass176_0.<ExecuteSelfReplicating>b__0(Object )
---> (Inner Exception #0) System.InvalidOperationException: There were not enough free threads in the ThreadPool to complete the operation.
 at Google.Apis.Http.ConfigurableMessageHandler.<SendAsync>d__43.MoveNext()
--- 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 Google.Apis.Auth.OAuth2.Requests.TokenRequestExtenstions.<ExecuteAsync>d__0.MoveNext()
--- 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 Google.Apis.Auth.OAuth2.ServiceAccountCredential.<RequestAccessTokenAsync>d__20.MoveNext()
--- 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 Unify.Product.IdentityBroker.GoogleAgent.<GetServiceFactory>d__10b.MoveNext()
--- 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 Unify.Product.IdentityBroker.GoogleAgent.<GetUsersSettingsService>d__154.MoveNext()<---
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---> (Inner Exception #1) System.AggregateException: One or more errors occurred. ---> System.InvalidOperationException: There were not enough free threads in the ThreadPool to complete the operation.
 at Google.Apis.Http.ConfigurableMessageHandler.<SendAsync>d__43.MoveNext()
--- 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 Google.Apis.Auth.OAuth2.Requests.TokenRequestExtenstions.<ExecuteAsync>d__0.MoveNext()
--- 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 Google.Apis.Auth.OAuth2.ServiceAccountCredential.<RequestAccessTokenAsync>d__20.MoveNext()
--- 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 Unify.Product.IdentityBroker.GoogleAgent.<GetServiceFactory>d__10b.MoveNext()
--- 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 Unify.Product.IdentityBroker.GoogleAgent.<GetUsersSettingsService>d__154.MoveNext()
 --- End of inner exception stack trace ---
 at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
 at Unify.Product.IdentityBroker.GoogleAgent.InnerUserSettingsGet(Boolean getLabels, Func`1 getClient, String username, Boolean getSendAs, Boolean getForwarding, Boolean getPop, Boolean getImap, Boolean getVacation, Boolean getSignature, Boolean getDelegation)
 at Unify.Product.IdentityBroker.GoogleAgent.<>c__DisplayClassb1.<UserSettingsGet>b__ae(String username)
 at System.Threading.Tasks.Parallel.<>c__DisplayClass17_0`1.<ForWorker>b__1()
 at System.Threading.Tasks.Task.InnerInvokeWithArg(Task childTask)
 at System.Threading.Tasks.Task.<>c__DisplayClass176_0.<ExecuteSelfReplicating>b__0(Object )
---> (Inner Exception #0) System.InvalidOperationException: There were not enough free threads in the ThreadPool to complete the operation.
 at Google.Apis.Http.ConfigurableMessageHandler.<SendAsync>d__43.MoveNext()
--- 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 Google.Apis.Auth.OAuth2.Requests.TokenRequestExtenstions.<ExecuteAsync>d__0.MoveNext()
--- 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 Google.Apis.Auth.OAuth2.ServiceAccountCredential.<RequestAccessTokenAsync>d__20.MoveNext()
--- 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 Unify.Product.IdentityBroker.GoogleAgent.<GetServiceFactory>d__10b.MoveNext()
--- 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 Unify.Product.IdentityBroker.GoogleAgent.<GetUsersSettingsService>d__154.MoveNext()<---
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