Symptoms
Consider the following scenario:
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You're on a Microsoft Lync Server 2013 RTM (5.0.8308.0) server that's running a non-English version.
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You install the May 2015 Cumulative Update 5.0.8308.887 on the server.
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You run the Bootstrapper.exe executable file.
In this scenario, Bootstrapper.exe can't be started. Additionally, you receive the following error message:
Error: The given key was not present in the dictionary.
▼ Details└ Type: KeyNotFoundException└ ▼ Stack Trace └ at System.Collections.Generic.Dictionary`2.get_Item(TKey key) at Microsoft.Rtc.Internal.Tools.Bootstrapper.BootstrapperTask.RemoveUnusedFeatures(Boolean scorch)at Microsoft.Rtc.Management.Internal.Utilities.LogWriter.InvokeAndLog[T](Action`1 action, T arg)
Cause
This issue occurs because a change in the Microsoft.Rtc.Management.Deployment.dll file in the English version of the file hasn't been made available to the non-English version of the file.
Resolution
To fix this issue, install the April 2016 cumulative update 5.0.8308.956 for the Lync Server 2013, Core Components.
