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Exchange Hybrid Deployment Error

I am setting up an Exchange Hybrid deployment for a client. They are running Exchange 2010 SP2. When I try to run the Hybrid Deployment Wizard I get an error. I have researched the error and found that it's related to .NET. I found one post where someone had the exact error and resolved it with a hotfix. When I try to apply the same hotfix it says that it's not applicable to my system. This the error i get:

ERROR:Updating hybrid configuration failed with error 'Subtask Configure execution failed: Creating Organization Relationships.


Could not load file or assembly 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.
   at System.Reflection.Assembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, Assembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection)
   at System.Reflection.Assembly.InternalLoad(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
   at System.Reflection.Assembly.InternalLoad(String assemblyString, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection)
   at System.Reflection.Assembly.Load(String assemblyString)
   at System.UnitySerializationHolder.GetRealObject(StreamingContext context)
   at System.Runtime.Serialization.ObjectManager.ResolveObjectReference(ObjectHolder holder)
   at System.Runtime.Serialization.ObjectManager.DoFixups()
   at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
   at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
   at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, IMethodCallMessage methodCallMessage)
   at Microsoft.Exchange.Data.SerializationTypeConverter.<>c__DisplayClass3.<DeserializeObject>b__0()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(TryDelegate tryDelegate, FilterDelegate filterDelegate, CatchDelegate catchDelegate)
   at Microsoft.Exchange.Diagnostics.ExWatson.SendReportOnUnhandledException(MethodDelegate methodDelegate, IsExceptionInteresting exceptionInteresting, Boolean terminating)
   at Microsoft.Exchange.Data.SerializationTypeConverter.DeserializeObject(Object sourceValue, Type destinationType)
   at Microsoft.Exchange.Configuration.MonadDataProvider.MonadCommand.Deserialize(PSObject psObject)
   at Microsoft.Exchange.Management.Hybrid.RemotePowershellSession.RunOneCommand(String command, Dictionary`2 parameters, Boolean ignoreNotFoundErrors)
   at Microsoft.Exchange.Management.Hybrid.TaskCommon.VerifyAcceptedTokenIssuerUri(RemotePowershellSession session, List`1 acceptedTokenIssuerUris)
   at Microsoft.Exchange.Management.Hybrid.OrganizationRelationshipTask.TaskConfigure(ITaskContext taskContext)
   at Microsoft.Exchange.Management.Hybrid.Engine.ExecuteTask(TaskBase taskBase, TaskContext taskContext)
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Flexible_Systems
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Flexible_Systems
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1 Solution
 
Peter HutchisonSenior Network Systems SpecialistCommented:
If using Hybrid Exchange for Office 365, it is recommended to upgrade Exchange servers to Exchange 2010 SP3.
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Flexible_SystemsAuthor Commented:
I did some further reading and found the same thing. I'll give that a shot and report back
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Flexible_SystemsAuthor Commented:
Upgrading to SP3 did the trick. Thanks
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